Who almost said 'a--' at White House event?

This is a bit of old news but I'm just now seeing it... and it's good.

While speaking at a White House event last Thursday on dating violence and sexual assault, Vice President Joe Biden stopped just short of saying "ass" in front of his audience.

Biden was joined on stage by professional athletes, who he referred to while saying: “These guys are real men. Somebody walk in a locker room and say, ‘Last night, man, I did the following…’ These guys are gonna either knock them on their a… They’re either, they are going to say something to them. And that’s a big change. That’s a big change."

Watch [CNN]: