C-40:the illegal drug known as crack or cocainecocaine;the act of smoking cocaine
"Yea,dude waz so high off dat C-40,he missed class."
"She be gettin that C-40 from the niggas off the corner"
"Naww man.I can't be smokin that C-40,my mama will be on my jock!"
"Yea, you know them niggas be doin the C-40"
"Jessica told me that the cops buted them dudes for doin that c-40"
a term Crips use, whiCh means "let Me by"
Cuddi- "C-40 loc"
Lox- "iight 6"