Donald Trump fired Maria Kanellis on "Celebrity Apprentice" in 2010 over "locker room" talk. Screenshot via Twitter Donald Trump skewered a "Celebrity Apprentice" contestant and fired her in 2010 for using what he called "locker room" language that he apparently found distasteful when spoken in his boardroom during an episode of the reality show in 2010.

During a confrontation with professional wrestler Maria Kanellis, Trump criticized her for using the word "crap" to describe another contestant's actions.

"Isn't it sort of gross bringing that up? It's, like, disgusting," Trump said. "This is my boardroom. It's not a locker room. Maria, you're fired."

Trump, who is now the Republican presidential nominee, used the phrase "locker-room talk" on Friday to describe his own words from the recently leaked 2005 video of his boasting about groping women.

"I'm not proud of it. I apologize to my family," Trump said of the video during Sunday night's presidential debate in St. Louis. "I apologize to the American people. Certainly I'm not proud of it. But this is locker-room talk."

Watch the video below: