A guy who is waiting to be the next in line for another man's girl.
Me and my girl just got in a fight, but I still wanna be with her cause there's nigga in waiting.
by Brandon Collet March 12, 2004
A black guys main man who has his back when the (popo) comes to bust him.
Tommy's nigga in waiting Trevor popped a cap in the cop's ass when he started asking silly questions.
by mizfinething June 29, 2006