Catch these feet

When you going to fight someone, but you're better and running away instead.

"Hey! You about to catch these hands!"
"Oh yeah! And you about to catch these feet!"

*Runs away

catch your feet

Exactly how it sounds, the equivalent of saying "Don't trip", basically stop yourself from digging yourself into a deeper hole. Stop asking or worrying about something.

Guy: I'll ask her when the last time she got checked was
Guy2: Catch your feet dude shes going to get pissed if you keep asking her shit like that.