moon crack

A term used to describe synthetic marijuana such as K2, Wicked X, XXX, or any other form of ‘legal weed’.

Guy 1: Yo, that Moon Crack we smoked has me mad paranoid. We should get out of here.
Guy 2: Don’t worry about it, man. The high is only gonna last another 20 minutes.
Guy 1: *Punches Guy 2 in the face for no apparent reason*