1. The compulsive itching of
balls in a way that makes it look
like your having a seizure with your hand(s) in your pants.
2. Someone who is making a complete ass of them-self.
Jamal:
OMG! Is he having a seizure?
Ajou: Naw, it's ok. He's just being a BallSnatch.
Alfonso: Why'd you have to shit in the urinal? You're being such a BallSnatch!