Ashton Kutcher reveals how he and Mila Kunis named their baby

On "Conan," Ashton Kutcher revealed how he and fiancee Mila Kunis came up with the name Wyatt Isabelle for their newborn daughter. And it was apparently quite the process.

Ashton said he and Mila had a name picked out a couple of weeks before they got pregnant.

But once they found out Mila was expecting, he told Conan O'Brien that name just didn't fit the energy they were feeling.

So he needed to get the creative juices flowing. "We were going to a Lakers game, and I got name Tourettes. And I just started, like, listing off anything and everything that I saw. I was like, sign, truck, wall, door. And she's like, 'Shut up!'"

But finally, after a few failed attempts, the "Two and a Half Men" actor suggested Wyatt, and Mila immediately fell in love. And they gave her the middle name Isabelle "after Mila's grandfather, Itzhak."

Ashton and Mila first revealed their now 3-week-old daughter's name in an equally hilarious way just one day after she was born.

Ashton posted this message to his website along with several photos of different babies, prompting viewers to guess which one was Wyatt.

And we're still not quite sure which baby is his.

Touche, Ashton, touche.