When Lebron James' mom jumps into the fray during heated game, the NBA star goes off.

If you have a kid in sports, you know the temptation to jump up and defend your child when another kid is playing rough or you don't agree with a ref's call. Lebron James' mom recently gave in to that temptation, rushing to her son's defense during a foul play. (Sure, he's 23, but he's still his mama's "baby boy.") Lebron wasn't too happy about mom's meddling. In fact, he used some choice words to coax her back into her seat: "Sit your ass down!" Wonder if she washed that mouth out with soap.

Read his lips at 0:12



"I told her to sit down, in some language I shouldn't have used," James fessed up to USA Today. Ya think? "Thank God today wasn't Mother's Day. All I could think about is her. ... I know my mother. It's fine, we're good."