Republican presidential candidate Carly Fiorina went slightly more in-depth Thursday to explain what's become a frequently usedcomparison — GOP front-runner Donald Trump and "Keeping Up with the Kardashians" star Kim Kardashian.
At a campaign event Thursday in Charleston, South Carolina, Fiorina said Trump's "big" mouth was similar to a Kardashian's big "you-know-what," drawing a burst of laughter from the crowd.
"You know, Donald Trump is the Kim Kardashian of politics," she said. "He has a big mouth. She has a big 'you-know-what.' And they're both famous for being famous, and the media plays along."
Carly Fiorina on the campaign trail:
Carly Fiorina on the campaign trail
Carly Fiorina compares Donald Trump's mouth to Kim Kardashian's 'you-know-what'
DAVENPORT, IA - SEPTEMBER 25: Republican presidential candidate Carly Fiorina addresses the Quad Cities New Ideas Forum at St. Ambrose University on September 25, 2015 in Davenport, Iowa. Fiorina is currently polling in second place behind Donald Trump for the Republican nomination. (Photo by Scott Olson/Getty Images)
MYRTLE BEACH, SC - SEPTEMBER 22: Republican presidential candidate Carly Fiorina speaks to voters during a town hall meeting at the Ocean Reef Convention Center September 22, 2015 in Myrtle Beach, South Carolina. Fiorina is a former Chief Executive Officer of Hewlett-Packard and currently chairs the non-profit philanthropic organization Good360. (Photo by Sean Rayford/Getty Images)
THE TONIGHT SHOW STARRING JIMMY FALLON -- Episode 0333 -- Pictured: (l-r) Politician Carly Fiorina during an interview with host Jimmy Fallon on September 21, 2015 -- (Photo by: Douglas Gorenstein/NBC/NBCU Photo Bank via Getty Images)
GREENVILLE, SC - SEPTEMBER 18: Republican presidential candidate Carly Fiorina speaks to voters at the Heritage Action Presidential Candidate Forum September 18, 2015 in Greenville, South Carolina. Ten republican candidates were each given 25 minutes to talk to the crowd at the Bons Secours Wellness Arena in the upstate of South Carolina. (Photo by Sean Rayford/Getty Images)
Republican presidential hopeful Carly Fiorina looks on during the Republican presidential debate at the Ronald Reagan Presidential Library in Simi Valley, California on September 16, 2015. Republican presidential frontrunner Donald Trump stepped into a campaign hornet's nest as his rivals collectively turned their sights on the billionaire in the party's second debate of the 2016 presidential race. AFP PHOTO / FREDERIC J. BROWN (Photo credit should read FREDERIC J BROWN/AFP/Getty Images)
Republican presidential candidate Carly Fiorina, the former Hewlett-Packard chief executive waves as she and supporters march in the Labor Day parade Monday, Sept. 7, 2015, in Milford, N.H. (AP Photo/Jim Cole)
DERRY, NH - SEPTEMBER 6: Republican presidential candidate Carly Fiorina campaigns in New Hampshire over Labour Day weekend and meets with locals at MaryAnn's Diner on September 6, 2015 in Derry, New Hampshire. (Photos by Charles Ommanney/The Washington Post via Getty Images)
LITTLETON, NEW HAMPSHIRE - AUGUST 20: Carly Fiorina meets New Hampshire voters at a Spaghetti Dinner in the north country of Littleton, New Hampshire on Thursday, August 20, 2015. (Photo by Melina Mara/The Washington Post via Getty Images)
Republican presidential candidate Carly Fiorina does a television interview during a visit to the Iowa State Fair, Monday, Aug. 17, 2015, in Des Moines, Iowa. (AP Photo/Charlie Neibergall)
FILE- In this Aug. 14, 2015, file photo, Republican presidential candidate Carly Fiorina talks to a restaurant patron during a campaign stop at the Starboard Market in Clear Lake, Iowa. CNN on Tuesday, Sept. 1, amended its criteria for the next Republican presidential debate, giving Fiorina a better chance at appearing in the Sept. 16 primetime affair. (AP Photo/Charlie Riedel, File)
Republican presidential candidate Carly Fiorina waves to the crowd after speaking at the RedState Gathering, Friday, Aug. 7, 2015, in Atlanta. (AP Photo/David Goldman)
Republican presidential candidate Carly Fiorina speaks during a FOX News Channel pre-debate forum at the Quicken Loans Arena, Thursday, Aug. 6, 2015, in Cleveland. Seven of the candidates have not qualified for the primetime debate. (AP Photo/John Minchillo)
Republican presidential candidate, businesswoman Carly Fiorina speaks alongside moderator Jack Heath during a forum Monday, Aug. 3, 2015, in Manchester, N.H. (AP Photo/Jim Cole)
Republican presidential candidate Carly Fiorina speaks to local residents during a meet and greet at Cecil's Cafe, Thursday, July 23, 2015, in Marshalltown, Iowa. (AP Photo/Charlie Neibergall)
Republican presidential candidate Carly Fiorina greets manufacturing worker Tommy Theth as she tours Turbocam, Monday, July 6, 2015, during a campaign stop in Barrington, N.H. (AP Photo/Elise Amendola)
Republican presidential candidate, Carly Fiorina speaks at the Road to Majority 2015 convention in Washington, Saturday, June 20, 2015. (AP Photo/Manuel Balce Ceneta)
Republican presidential candidate Carly Fiorina poses for photographs, Friday, June 19, 2015, at the Northeast Republican Leadership Conference in Philadelphia. (AP Photo/Matt Rourke)
Republican presidential candidate Carly Fiorina, the former Hewlett-Packard chief executive, gestures during her address at an N.H. High Tech Council event in Manchester, N.H., Friday, May 8, 2015. Fiorina, who ran for a Senate seat in California and lost to incumbent Democratic Sen. Barbara Boxer, emerged as one of the Republican Party's most aggressive Clinton critics in the weeks leading up to this week's announcement of her candidacy. (AP Photo/Charles Krupa)
Republican presidential candidate Carly Fiorina, the former Hewlett-Packard chief executive, is interviewed by Neil Cavuto, during the "Cavuto" program on the Fox Business Network, in New York, Wednesday, May 6, 2015. Fiorina, who ran for a Senate seat in California and lost to incumbent Democratic Sen. Barbara Boxer, emerged as one of the Republican Party's most aggressive Clinton critics in the weeks leading up to this week's announcement of her candidacy. (AP Photo/Richard Drew)
Former Hewlett-Packard CEO Carly Fiorina speaks at the Iowa Faith & Freedom 15th Annual Spring Kick Off, in Waukee, Iowa, Saturday, April 25, 2015. (AP Photo/Nati Harnik)
FILE - In this April 18, 2015 file photo, Carly Fiorina speaks at the Republican Leadership Summit in Nashua, N.H. The former technology executive formally entered the 2016 presidential race on Monday. (AP Photo/Jim Cole)
The two Republican rivals have feuded on and off since early in the campaign season. Most notably, Trump appeared to take a shot at Fiorina's looks in a September interview with Rolling Stone.
"Look at that face!" Trump was quoted as saying. "Would anyone vote for that? Can you imagine that, the face of our next president. I mean, she's a woman, and I'm not supposed to say bad things, but really, folks, come on. Are we serious?"
Fiorina was pushed back into Thursday's undercard debate — which is also being held in Charleston — because of slumping poll numbers. Trump, as he has been for each of the first five debates, remains front and center at the main event.