Royal baby: Internet goes wild over Prince William's joke as he leaves hospital with new son

Thrice worry now!

Prince William is garnering praise on Twitter for a funny little quip he made while loading his newborn son into his Range Rover outside of the Lindo Wing in London on Monday.

Wife Kate Middleton gave birth to the couple's third child on Monday morning at 11:01 am, and hours later the royals drove back to Kensington Palace after debuting their son to the world -- a remarkably quick turnaround! 

SEE ALSO: How Prince William and Kate have channeled (and abandoned) Diana and Charles' royal baby traditions

See photos from the royal baby debut:

41 PHOTOS
Duchess Kate gives birth to baby No. 3! All the photos from the big day
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Duchess Kate gives birth to baby No. 3! All the photos from the big day
Britain's Prince William, Duke of Cambridge (L) and Britain's Catherine, Duchess of Cambridge show their newly-born son, their third child, to the media outside the Lindo Wing at St Mary's Hospital in central London, on April 23, 2018. (Photo by Daniel LEAL-OLIVAS / AFP) (Photo credit should read DANIEL LEAL-OLIVAS/AFP/Getty Images)
LONDON, ENGLAND - APRIL 23: Catherine, Duchess of Cambridge and Prince William, Duke of Cambridge depart the Lindo Wing with their newborn son at St Mary's Hospital on April 23, 2018 in London, England. The Duchess safely delivered a son at 11:01 am, weighing 8lbs 7oz, who will be fifth in line to the throne. (Photo by Karwai Tang/WireImage)
LONDON, ENGLAND - APRIL 23: Catherine, Duchess of Cambridge and Prince William, Duke of Cambridge depart the Lindo Wing with their newborn son at St Mary's Hospital on April 23, 2018 in London, England. The Duchess safely delivered a boy at 11:01 am, weighing 8lbs 7oz, who will be fifth in line to the throne. (Photo by Samir Hussein/WireImage)
The Duke and Duchess of Cambridge and their newborn son outside the Lindo Wing at St Mary's Hospital in Paddington, London. (Photo by John Stillwell/PA Images via Getty Images)
LONDON, ENGLAND - APRIL 23: Catherine, Duchess of Cambridge departs the Lindo Wing with her newborn son at St Mary's Hospital on April 23, 2018 in London, England. The Duchess safely delivered a boy at 11:01 am, weighing 8lbs 7oz, who will be fifth in line to the throne. (Photo by Chris Jackson/Getty Images)
Britain's Catherine, Duchess of Cambridge holds her newly-born son as he's presented to the press outside the Lindo Wing at St Mary's Hospital in central London, on April 23, 2018. (Photo by Daniel LEAL-OLIVAS / AFP) (Photo credit should read DANIEL LEAL-OLIVAS/AFP/Getty Images)
Britain's Prince William, Duke of Cambridge and Britain's Catherine, Duchess of Cambridge show their newly-born son, their third child, to the media outside the Lindo Wing at St Mary's Hospital in central London, on April 23, 2018. Photo by Daniel LEAL-OLIVAS / AFP 
Britain's Prince William, Duke of Cambridge and Britain's Catherine, Duchess of Cambridge show their newly-born son, their third child, to the media outside the Lindo Wing at St Mary's Hospital in central London, on April 23, 2018. (Photo by Daniel LEAL-OLIVAS / AFP) 
The newborn son of Prince William, Duke of Cambridge and Catherine, Duchess of Cambridge as they depart the Lindo Wing at St Mary's Hospital on April 23, 2018 in London, England. The Duchess safely delivered a boy at 11:01 am, weighing 8lbs 7oz, who will be fifth in line to the throne. (Photo by Chris Jackson/Getty Images)
The newborn son of Prince William, Duke of Cambridge and Catherine, Duchess of Cambridge as they depart the Lindo Wing at St Mary's Hospital on April 23, 2018 in London, England. The Duchess safely delivered a boy at 11:01 am, weighing 8lbs 7oz, who will be fifth in line to the throne. (Photo by Chris Jackson/Getty Images)
Britain's Prince William, Duke of Cambridge and Britain's Catherine, Duchess of Cambridge show their newly-born son, their third child, to the media outside the Lindo Wing at St Mary's Hospital in central London, on April 23, 2018. (Photo by DANIEL LEAL-OLIVAS / AFP) 
The Duchess of Cambridge with her newborn son outside the Lindo Wing at St Mary's Hospital in Paddington, London. (Photo by John Stillwell/PA Images via Getty Images)
Britain's Prince William, Duke of Cambridge and Britain's Catherine, Duchess of Cambridge show their newly-born son, their third child, to the media outside the Lindo Wing at St Mary's Hospital in central London, on April 23, 2018. (Photo by Isabel INFANTES / AFP)
The Duchess of Cambridge and her newborn son outside the Lindo Wing at St Mary's Hospital in Paddington, London. (Photo by Dominic Lipinski/PA Images via Getty Images)
Britain's Prince William, Duke of Cambridge and Britain's Catherine, Duchess of Cambridge show their newly-born son, their third child, to the media outside the Lindo Wing at St Mary's Hospital in central London, on April 23, 2018. (Photo by Ben STANSALL / AFP) (Photo credit should read BEN STANSALL/AFP/Getty Images)
Britain's Prince William, Duke of Cambridge and Britain's Catherine, Duchess of Cambridge (R) show their newly-born son, their third child, to the media outside the Lindo Wing at St Mary's Hospital in central London, on April 23, 2018. (Photo by Ben STANSALL / AFP) 
Catherine, Duchess of Cambridge and Prince William, Duke of Cambridge depart the Lindo Wing with their newborn son at St Mary's Hospital on April 23, 2018 in London, England. The Duchess safely delivered a son at 11:01 am, weighing 8lbs 7oz, who will be fifth in line to the throne. (Photo by Mike Marsland/Mike Marsland/ WireImage)
Catherine, Duchess of Cambridge and Prince William, Duke of Cambridge depart the Lindo Wing with their newborn son at St Mary's Hospital on April 23, 2018 in London, England. The Duchess safely delivered a son at 11:01 am, weighing 8lbs 7oz, who will be fifth in line to the throne. (Photo by Mike Marsland/Mike Marsland/ WireImage)
Britain's Prince William arrives at the Lindo Wing of St Mary's Hospital with his children Prince George and Princess Charlotte after his wife Catherine, the Duchess of Cambridge, gave birth to a son, in London, April 23, 2018. (REUTERS/Henry Nicholls)
LONDON, ENGLAND - APRIL 23: Prince William, Duke of Cambridge arrives with Prince George and Princess Charlotte at the Lindo Wing after Catherine, Duchess of Cambridge gave birth to their son at St Mary's Hospital on April 23, 2018 in London, England. The Duchess safely delivered a boy at 11:01 am, weighing 8lbs 7oz, who will be fifth in line to the throne. (Photo by Steve Back/Getty Images)
Princess Charlotte of Cambridge (L) turns to wave at the media as she is led in with her brother Prince George of Cambridge (R) by their father Britain's Prince William, Duke of Cambridge, (C) at the Lindo Wing of St Mary's Hospital in central London, on April 23, 2018, to visit Catherine, Duchess of Cambridge, and their new-born brother, the Duke and Duchess's third child. - Kate, the wife of Britain's Prince William, has given birth to a baby son, Kensington Palace announced Monday. 'Her Royal Highness The Duchess of Cambridge was safely delivered of a son at 11:01 (1001 GMT),' the palace said in a statement. The baby boy weighs eight pounds and seven ounces (3.8 kilogrammes). (Photo by Ben STANSALL / AFP) (Photo credit should read BEN STANSALL/AFP/Getty Images)
LONDON, ENGLAND - APRIL 23: Prince William, Duke of Cambridge and Princess Charlotte arrive with Prince George at the Lindo Wing after the birth of his third child on April 23, 2018 in London, England. The Duchess of Cambridge gave birth to a boy at 11:01 BST, weighing 8lb 7oz. (Photo by Neil Mockford/GC Images)
LONDON, ENGLAND - APRIL 23: Prince William, Duke of Cambridge, Prince George and Princess Charlotte arrive at the Lindo Wing after the birth of his third child on April 23, 2018 in London, England. The Duchess of Cambridge gave birth to a boy at 11:01 BST, weighing 8lb 7oz. (Photo by Neil Mockford/GC Images)
Princess Charlotte of Cambridge (L) turns to wave at the media as she is led in with her brother Prince George of Cambridge (R) by their father Britain's Prince William, Duke of Cambridge, (C) at the Lindo Wing of St Mary's Hospital in central London, on April 23, 2018, to visit Catherine, Duchess of Cambridge, and their new-born brother, the Duke and Duchess's third child. - Kate, the wife of Britain's Prince William, has given birth to a baby son, Kensington Palace announced Monday. 'Her Royal Highness The Duchess of Cambridge was safely delivered of a son at 11:01 (1001 GMT),' the palace said in a statement. The baby boy weighs eight pounds and seven ounces (3.8 kilogrammes). (Photo by Ben STANSALL / AFP) (Photo credit should read BEN STANSALL/AFP/Getty Images)
LONDON, ENGLAND - APRIL 23: Prince William, Duke of Cambridge arrives with Prince George and Princess Charlotte at the Lindo Wing after Catherine, Duchess of Cambridge gave birth to their son at St Mary's Hospital on April 23, 2018 in London, England. The Duchess safely delivered a boy at 11:01 am, weighing 8lbs 7oz, who will be fifth in line to the throne. (Photo by Chris Jackson/Getty Images)
Britain's Prince William, Duke of Cambridge, gives a wave as he leaves the Lindo Wing at St Mary's Hospital in central London, on April 23, 2018, after his wife Britain's Catherine, Duchess of Cambridge, gave birth to a son, their third child. - Kate, the wife of Britain's Prince William, has given birth to a baby son, Kensington Palace announced Monday. 'Her Royal Highness The Duchess of Cambridge was safely delivered of a son at 11:01 (1001 GMT),' the palace said in a statement. The baby boy weighs eight pounds and seven ounces (3.8 kilogrammes). (Photo by Ben STANSALL / AFP) (Photo credit should read BEN STANSALL/AFP/Getty Images)
Britain's Prince William, Duke of Cambridge, gives a wave as he leaves the Lindo Wing at St Mary's Hospital in central London, on April 23, 2018, after his wife Britain's Catherine, Duchess of Cambridge, gave birth to a son, their third child. - Kate, the wife of Britain's Prince William, has given birth to a baby son, Kensington Palace announced Monday. 'Her Royal Highness The Duchess of Cambridge was safely delivered of a son at 11:01 (1001 GMT),' the palace said in a statement. The baby boy weighs eight pounds and seven ounces (3.8 kilogrammes). (Photo by Ben STANSALL / AFP) (Photo credit should read BEN STANSALL/AFP/Getty Images)
Britain's Prince William, Duke of Cambridge, gives a wave as he leaves the Lindo Wing at St Mary's Hospital in central London, on April 23, 2018, after his wife Britain's Catherine, Duchess of Cambridge, gave birth to a son, their third child. - Kate, the wife of Britain's Prince William, has given birth to a baby son, Kensington Palace announced Monday. 'Her Royal Highness The Duchess of Cambridge was safely delivered of a son at 11:01 (1001 GMT),' the palace said in a statement. The baby boy weighs eight pounds and seven ounces (3.8 kilogrammes). (Photo by Ben STANSALL / AFP) (Photo credit should read BEN STANSALL/AFP/Getty Images)
Britain's Prince William, Duke of Cambridge, gives a wave as he leaves the Lindo Wing at St Mary's Hospital in central London, on April 23, 2018, after his wife Britain's Catherine, Duchess of Cambridge, gave birth to a son, their third child. - Kate, the wife of Britain's Prince William, has given birth to a baby son, Kensington Palace announced Monday. 'Her Royal Highness The Duchess of Cambridge was safely delivered of a son at 11:01 (1001 GMT),' the palace said in a statement. The baby boy weighs eight pounds and seven ounces (3.8 kilogrammes). (Photo by Ben STANSALL / AFP) (Photo credit should read BEN STANSALL/AFP/Getty Images)
Britain's Prince William, Duke of Cambridge, gives a wave as he leaves the Lindo Wing at St Mary's Hospital in central London, on April 23, 2018, after his wife Britain's Catherine, Duchess of Cambridge, gave birth to a son, their third child. - Kate, the wife of Britain's Prince William, has given birth to a baby son, Kensington Palace announced Monday. 'Her Royal Highness The Duchess of Cambridge was safely delivered of a son at 11:01 (1001 GMT),' the palace said in a statement. The baby boy weighs eight pounds and seven ounces (3.8 kilogrammes). (Photo by Isabel INFANTES / AFP) (Photo credit should read ISABEL INFANTES/AFP/Getty Images)
LONDON, ENGLAND - APRIL 23: Tourists and photographers take pictures of a notice placed on an easel in the forecourt of Buckingham Palace in London to formally announce the birth of a baby boy to the Duke and Duchess of Cambridge at the Lindo Wing of St Mary's Hospital on April 23, 2018 in London, England. The Duchess safely delivered a son at 11:01 am, weighing 8lbs 7oz, who will be fifth in line to the throne. (Photo by Stefan Rousseau - WPA Pool/Getty Images)
LONDON, ENGLAND - APRIL 23: A notice is placed on an easel in the forecourt of Buckingham Palace in London to formally announce the birth of a baby boy to the Duke and Duchess of Cambridge at the Lindo Wing of St Mary's Hospital on April 23, 2018 in London, England. The Duchess safely delivered a son at 11:01 am, weighing 8lbs 7oz, who will be fifth in line to the throne. (Photo by Stefan Rousseau - WPA Pool/Getty Images)
A Royal bulletin, announcing that Britain's Catherine, Duchess of Cambridge, the wife of Britain's Prince William, has given birth to a baby boy, stands on an easel on the forecourt of Buckingham Palace in London on April 23, 2018. - Kate, the wife of Britain's Prince William, has given birth to a baby son, Kensington Palace announced Monday. 'Her Royal Highness The Duchess of Cambridge was safely delivered of a son at 11:01 (1001 GMT),' the palace said in a statement. The baby boy weighs eight pounds and seven ounces (3.8 kilogrammes). (Photo by Stefan Rousseau / POOL / AFP) (Photo credit should read STEFAN ROUSSEAU/AFP/Getty Images)
Palace staff position a Royal bulletin, announcing that Britain's Catherine, Duchess of Cambridge, the wife of Britain's Prince William, has given birth to a baby boy, on an easel on the forecourt of Buckingham Palace in London on April 23, 2018. - Kate, the wife of Britain's Prince William, has given birth to a baby son, Kensington Palace announced Monday. 'Her Royal Highness The Duchess of Cambridge was safely delivered of a son at 11:01 (1001 GMT),' the palace said in a statement. The baby boy weighs eight pounds and seven ounces (3.8 kilogrammes). (Photo by Daniel SORABJI / AFP) (Photo credit should read DANIEL SORABJI/AFP/Getty Images)
A Royal bulletin, announcing that Britain's Catherine, Duchess of Cambridge, the wife of Britain's Prince William, has given birth to a baby boy, stands on an easel on the forecourt of Buckingham Palace in London on April 23, 2018. - Kate, the wife of Britain's Prince William, has given birth to a baby son, Kensington Palace announced Monday. 'Her Royal Highness The Duchess of Cambridge was safely delivered of a son at 11:01 (1001 GMT),' the palace said in a statement. The baby boy weighs eight pounds and seven ounces (3.8 kilogrammes). (Photo by Stefan Rousseau / POOL / AFP) (Photo credit should read STEFAN ROUSSEAU/AFP/Getty Images)
Camera crews prepare outside the Lindo Wing at St Mary's Hospital in central London where Britain's Catherine, Duchess of Cambridge gave birth to a baby boy on April 23, 2018. (Photo by Daniel LEAL-OLIVAS / AFP) (Photo credit should read DANIEL LEAL-OLIVAS/AFP/Getty Images)
Royal fans celebrate the news that Britain's Catherine, Duchess of Cambridge gave birth to a baby boy outside the Lindo Wing at St Mary's Hospital in central London, on April 23, 2018. (Photo by Isabel INFANTES / AFP) (Photo credit should read ISABEL INFANTES/AFP/Getty Images)
A town crier announces the news of the birth of a baby boy by Britain's Catherine, Duchess of Cambridge outside the Lindo Wing at St Mary's Hospital in central London, on April 23, 2018. (Photo by Ben STANSALL / AFP) (Photo credit should read BEN STANSALL/AFP/Getty Images)
A town crier outside the Lindo Wing at St Mary's Hospital in Paddington, London, after the news that the Duchess of Cambridge has given birth to a son. (Photo by Kirsty O'Connor/PA Images via Getty Images)
LONDON, ENGLAND - APRIL 23: A town crier announces that the Duchess of Cambridge has given birth to a baby boy at St Mary's Hospital on April 23, 2018 in London, England. The Duke and Duchess of Cambridge's third child was born this morning at 11:01, weighing 8lbs 7oz. (Photo by Jack Taylor/Getty Images)
LONDON, ENGLAND - APRIL 23: A town crier announces the birth of the new prince on the steps of the Lindo Wing on April 23, 2018 in London, England. (Photo by Neil Mockford/GC Images)
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While buckling his new son's car seat into the car, William had a short interaction with the adoring media and crowd outside of the hospital, where he held up three fingers and joked, "Thrice worry now!"

"Delighted. Very happy," he also said. "We didn't keep you waiting too long this time."

People online were quick to praise the lighthearted moment, too.

"Prince William is such a class act," one person tweeted. "When asked how he felt today he said 'I'm delighted' and joked 'Thrice the worry now.' I think when my third daughter was born I just said, 'Bugger.'"

See royal baby debuts through the years:

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Royal baby arrivals through the years
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Royal baby arrivals through the years
UNITED KINGDOM - JUNE 22: Prince Charles, Prince of Wales and Diana, Princess of Wales leave the Lindo Wing of St Mary's hospital with their first baby son, Prince William (Photo by Tim Graham/Getty Images)
The Prince and Princess of Wales with newborn son baby Prince William at St Mary's hospital, London in June 1982. Photo. Anwar Hussein
21st JUNE : On this day in 1982 Prince William was born. The Prince and Princess of Wales leaving the Lindo Wing, at St. Mary's Hospital after the birth of their baby son, Prince William.
LONDON - JUNE 22: New born Prince William with Diana Princess of Wales and Prince Charles leave St. Mary's hospital on June 22, 1982 in Paddington, London, England. He was born in the Lindo Wing of the hospital, the day before, June 21.(Photo by David Levenson/Getty Images)
LONDON, ENGLAND - JUNE 22: Diana, Princess of Wales and Prince Charles, Prince of Wales leave St. Mary's Hospital in London with baby Prince William on June 22, 1982. (Photo by Anwar Hussein/WireImage)
LONDON, UNITED KINGDOM - SEPTEMBER 17: Diana, Princess of Wales and Prince Charles, Prince of Wales leave the Lindo Wing of St. Mary's Hospital following the birth of Prince Harry on September 17, 1984 in London, England. (Photo by Anwar Hussein/Getty Images)
LONDON - SEPTEMBER 16: Diana Princess of Wales and Prince Charles with new born Prince Harry, leave St.Mary's Hospital on September 16, 1984 in Paddington, London. Diana wore an oufit designed by Jan Van Velden. (Photo by David Levenson/Getty Images)
LONDON, UNITED KINGDOM - SEPTEMBER 17: Diana, Princess of Wales leaves the Lindo Wing of St. Mary's Hospital following the birth of Prince Harry on September 17, 1984 in London, England. (Photo by Anwar Hussein/Getty Images)
LONDON, UNITED KINGDOM - SEPTEMBER 17: Prince Charles & Princess Diana With The Newly Born Prince Henry (harry) Outside The Lindo Wing. (Photo by Tim Graham/Getty Images)
LONDON, UNITED KINGDOM - SEPTEMBER 17: Diana, Princess of Wales and Prince Charles, Prince of Wales leave the Lindo Wing of St. Mary's Hospital following the birth of Prince Harry on September 17, 1984 in London, England. (Photo by Anwar Hussein/Getty Images)
LONDON - SEPTEMBER 16: (FILE PHOTO) Prince William, accompanied by nanny Barbara Barnes, waves as he leaves St Mary's Hospital after visiting his newborn brother, Prince Harry, on September 16, 1984 in London, England. (Photo by Anwar Hussein/Getty Images)
LONDON - SEPTEMBER 16: (FILE PHOTO) Prince William leaves St Mary's Hospital after visiting his newborn brother, Prince Harry, on September 16, 1984 in London, England. (Photo by Anwar Hussein/Getty Images)
Britain's Prince William and his wife Catherine, Duchess of Cambridge appear with their baby son outside the Lindo Wing of St Mary's Hospital, in central London July 23, 2013. Kate gave birth to the couple's first child, who is third in line to the British throne, on Monday afternoon, ending weeks of feverish anticipation about the arrival of the royal baby. REUTERS/Stefan Wermuth (BRITAIN - Tags: ROYALS ENTERTAINMENT HEALTH)
Britain's Catherine, Duchess of Cambridge, holds her baby son outside the Lindo Wing of St Mary's Hospital before leaving with Prince William, in central London July 23, 2013. Kate gave birth to the couple's first child, who is third in line to the British throne, on Monday afternoon, ending weeks of feverish anticipation about the arrival of the royal baby. REUTERS/John Stillwell/POOL (BRITAIN - Tags: ROYALS ENTERTAINMENT HEALTH)
Britain's Prince William and his wife Catherine, Duchess of Cambridge appear with their baby son outside the Lindo Wing of St Mary's Hospital, in central London July 23, 2013. Kate gave birth to the couple's first child, who is third in line to the British throne, on Monday afternoon, ending weeks of feverish anticipation about the arrival of the royal baby. REUTERS/Andrew Winning (BRITAIN - Tags: ROYALS ENTERTAINMENT HEALTH)
Britain's Prince William and his wife Catherine, Duchess of Cambridge appear with their baby son outside the Lindo Wing of St Mary's Hospital, in central London July 23, 2013. Kate gave birth to the couple's first child, who is third in line to the British throne, on Monday afternoon, ending weeks of feverish anticipation about the arrival of the royal baby. REUTERS/Cathal McNaughton (BRITAIN - Tags: ROYALS ENTERTAINMENT HEALTH)
Britain's Prince William and his wife Catherine, Duchess of Cambridge, appear with their baby daughter outside the Lindo Wing of St Mary's Hospital, in London, Britain May 2, 2015. The Duchess of Cambridge, gave birth to a girl on Saturday, the couple's second child and a sister to one-year-old Prince George. REUTERS/Suzanne Plunkett
Britain's Prince William and his wife Catherine, Duchess of Cambridge, appear with their baby daughter, Charlotte Elizabeth Diana, outside the Lindo Wing of St Mary's Hospital, in London, Britain May 2, 2015. The Duchess of Cambridge, gave birth to a girl on Saturday, the couple's second child and a sister to one-year-old Prince George. REUTERS/John Stillwell/pool
Britain's Prince William and his wife Catherine, Duchess of Cambridge, leave with their baby daughter from the Lindo Wing of St Mary's Hospital, in London, Britain May 2, 2015. The Duchess of Cambridge, gave birth to a girl on Saturday, the couple's second child and a sister to one-year-old Prince George. REUTERS/Suzanne Plunkett
Britain's Prince William and his wife Catherine, Duchess of Cambridge, appear with their baby daughter, Charlotte Elizabeth Diana, outside the Lindo Wing of St Mary's Hospital, in London, Britain May 2, 2015. The Duchess of Cambridge, gave birth to a girl on Saturday, the couple's second child and a sister to one-year-old Prince George. REUTERS/Cathal McNaughton
LONDON, ENGLAND - APRIL 23: Catherine, Duchess of Cambridge and Prince William, Duke of Cambridge, depart the Lindo Wing with their newborn son at St Mary's Hospital on April 23, 2018 in London, England. The Duchess safely delivered a boy at 11:01 am, weighing 8lbs 7oz, who will be fifth in line to the throne. (Photo by Gareth Cattermole/Gareth Cattermole/Getty Images)
Britain's Catherine, the Duchess of Cambridge and Prince William leave the Lindo Wing of St Mary's Hospital with their new baby boy in London, April 23, 2018. REUTERS/Hannah Mckay
Britain's Catherine, the Duchess of Cambridge and Prince William leave the Lindo Wing of St Mary's Hospital with their new baby boy in London, April 23, 2018. REUTERS/Hannah Mckay
Britain's Prince William and Catherine, The Duchess of Cambridge leaves the Lindo Wing at St Mary's Hospital with their newborn son in London, April 23, 2018. John Stillwell/Pool via Reuters
Britain's Catherine, the Duchess of Cambridge and Prince William leave the Lindo Wing of St Mary's Hospital with their new baby boy in London, April 23, 2018. REUTERS/Peter Nicholls
LONDON, ENGLAND - APRIL 23: Prince William, Duke of Cambridge and Catherine, Duchess of Cambridge depart the Lindo Wing with their newborn son at St Mary's Hospital on April 23, 2018 in London, England. The Duchess safely delivered a boy at 11:01 am, weighing 8lbs 7oz, who will be fifth in line to the throne. (Photo by Chris Jackson/Getty Images)
LONDON, ENGLAND - APRIL 23: Prince William, Duke of Cambridge and Catherine, Duchess of Cambridge leave the Lindo Wing of St Mary's Hospital with their new born baby boy on April 23, 2018 in London, England. The Duchess of Cambridge gave birth to a boy at 11.01 BST, weighing 8lb 7oz. (Photo by Chris J Ratcliffe/Getty Images)
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SEE ALSO: Kate Middleton and Prince William debut royal baby No. 3: Pictures!

Another user said that William's "dad jokes" were "quaint and charming," while someone else said that they "love" his comment.

Not everybody was taken with the second-in-line's joke, though.

"I was all, 'Aw Prince William is so down to earth, chatting away there,'" one person tweeted of the moment. 'Then he used the word 'thrice.' Back to the Palace mate."

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