And if I were you, I'd watch my ass with her.

Don't trust anyone, and watch your ass or they'll take it apart for you.

I had also told him to watch his ass.

Just don't spend so much time watching your ass that you miss what's right in front of you.

Lemme tell you, you're going to have to watch your ass over there.

He was smooth enough to keep his head down, watch his ass.

Which still might be today, tomorrow at the latest, if he didn't watch his ass.

"But in the meantime, you might want to watch your ass."

And one of them could wind up getting scalded in the bargain, if he didn't watch his ass.