Definitions by Johnny Johnothan

Murda Mook 

A freestyle rapper who recycles many of his lines from other battles.

Murda Mook: "You was better of signin' up with them Al Khada guys/Cuz goin against me is fuckin suicide"

John: "I swear I heard you say that in ya last 2 battles, Mook!"

Murda Mook by Johnny Johnothan August 6, 2006

Cassidy 

A mainstream and freestyle rapper from Philadelphia signed to Full Surface Records. He gained much of his fame from murdering Roc-A-Fell Rapper Freeway in a freestyle battle. His debut and sophomore albums, Split Personality and I'm A Hustla respectively went gold. He is widely considered as the best freestyler since the late Big L.

George: Cassidy is the illest freestyler in the game right now.

Tom: Ya, that boy Cass is a problem.

Cassidy by Johnny Johnothan August 6, 2006