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1.
csn
Crosby, Stills & Nash
CSN made some great music
by Nick April 05, 2005
 
2.
CSN
Chief Scratch Nuts - one who scratches their nutz frequently and feveriously.
Ty: What up wit CSN?
Fungi: He be scratchin' like a whore lookin' for a rock baby!
Ty: Cracktaculus!
by MC Cribbage March 17, 2003