What is Biym?
Balls in your mouth. (b.i.y.m)
If you don't quit talking shit, your gonna get some biym.
See balls, mouth, nuts, Connekted
Balls In Ya Mouf.
Person 1: Hey, I wanted to talk to you about last night...
Person 2: Hey, you know what? BIYM! Okay? Last night never happened.