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

Someone, particularly a female, that is just fucking insane. Typically overweight, bearing over-exposed thongs. Insecurity is often characteristic.

A group that consists of white members that act in a abnormal manner to get their point across.

Also a gang known as the Crazy Crackers or the CC. In the event that they hit, fight, jump, etc. They do so after they yell out BYAH!