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1.
Adj. Term used by old white southern people to define afro-Influenced music such as rap, hip hop, R&B, and jazz.
He walked out of the store with his coat full of CD's, I'll bet he stole a bunch of nigger jazz.
by freedumb1 May 19, 2006
 
2.
The official definition of NIGGERJAZZ is any music that black people (or niggers) listen to that isn't rap. Usually the music that black people listen to are 73 percent rap and 28 percent jazz.
John: Hey, did you hear that nigger's music blaring over there?

McTavish: Yeah, its that goddamn niggerjazz.
by Jesus McFuckendoucher September 28, 2011