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1.
a word that is used to describe something that is crazy.
damn dude,that bitch is kray kray!!!!!
by qtip October 26, 2003
 
2.
to be crazy, out of control, wild. not having a care in the world and partying nonstop.

Boy 1: Did you hear about Julie's party?
Boy 2: Yeah, man. I heard that it was Kray Kray.
Boy 1: I wish i was invited. But only Kray Kray people like Amanda and Julie were.
by kraykray101 December 12, 2011