What is Niggin'?
1.
1. The act of portraying an african-american; in using their behavior, clothing, language, etc.
2. see obnoxious
That guy can dance very well; he's straight niggin'!
Stop niggin' around!
See
2.
It's when to black guys say what's up? Like if a white guy said to another white guy. "Hey Cracka, What's crackin'?"
Black guy 1: "Hey Nigga what's niggin'?"
Black guy 2: " Nothin just listenin to Lil Weezy."
See