Noun. singular. Has several definitions:
1) a white female who is unusually obsessed with 90's hip-hop acts, particularly The Beastie Boys.
2) a female who closely resembles a man, or has obvious masculine features (facial hair, etc.)
3) the female who plays the male role in a lesbian relationship.
4) a female who is usually pleasant, but does a complete 180 when on the rag.
5) a very unconvincing drag queen.
6) Chynna, the wrestler or Xena, the Warrior Princess.

A casual invitation / threat used by an individual that is not afraid of fucking someone up.