Something to tell someone when you need them to shut up, sit down, and listen to you. Usually said after telling someone to "pop a squat" when they don't listen to you.
Mom: Pop a squat on the couch here, son, so we can talk about your grades.

Son: No thanks, I think I'm gonna go watch TV...

Mom: Pop a squat or I'll pop your squat!
by Morgan :P August 11, 2011
Get the pop a squat or i'll pop your squat mug.