Dax Shepard admits he accidentally taught his three-year-old daughter to swear

Kids are constantly repeating what they hear. 

And Dax Shepard, 42, learned that the hard way when he accidentally taught his three-year-old daughter the F-word.

During an appearance on the Ellen DeGeneres Show, Dax revealed he let out a few curse words after he almost broke his nose on his daughter's bookshelf, the Daily Mail reports. 

"I let a couple of mother****ers rip," Dax confessed during the interview. 

He goes on to explain that, in an effort to keep his two daughters from waking up so early, he tries to make their room as dark as possible. 

Dax, who is married to actress Kristen Bell, admits that one night after tucking his kids into bed he hit the bridge of his nose on a bookshelf. 

The pain of the incident caused him to let out a few colorful curse words, which his daughter proceeded to mimic. 

He continued: "The worst part of the story is two days later Kristen's walking down the hallway and Lincoln's in her room trying to get this sweatshirt off — she's like 3 — and her arms are all bound up in it and she's getting frustrated and she goes, 'Ow! F***!''

He explained that the couple chose to ignore their daughter's use of the f-word, hoping the lack of attention would get her to stop. 

But it didn't work and a few hours later, Lincoln said it again at a pool party. 

"This pool is f***ing warm," Dax recalls her saying.

He admits, their tactic worked and Lincoln stopped using the profanity. 

He concludes: "Side note, we were like, 'She's nailing the syntax. She knows that she's using it as an adjective, an adverb. We were proud and she stopped saying it."

Dax and Kristen have been together since 2007 and got married in 2013. 

They have two daughters, three-year-old Lincoln and Delta, two.  

- Daily Mail