look up any word, like bae:
When one's pants fall down due to a sudden motion which in turn exposes part of their buttocks and or the crack of their buttocks.
Clara: Alyssa just got up from her seat and totally crack attacked me!

Becca: Oh man, she's always doing that. You have to be careful when you sit behind her.
by Lisser Lou March 12, 2010
1 1