crazy - Popularized in the post millenium as a substitute for cool, hip, exciting, dope, off the hook and was widely accepted by middle class whites.
2. An adjective describing an individual (particularly a gangsta) who is mentally unstable and prone to bursts of violence or recklessness without regard to oneself.
1. "Me and my nigga saw Kill Bill yesterday. That shit was crazy."
2. "...and he just cut that fool for swiping his corn starch. Man, that nigga's crazy."