A term of endearment used among friends and aquanitances, most likely from caucasion decsent; but not limited too. To this day it is still frowned upon for non african americans to use "Nigga" when refering to someone, thus the need for a term that all races can be comfortable with; becuase it is a new word and hence no stigma is attached with it.
"Kevin: Ahhhhh! what up nergga? You bring that fire youv'e been smokin on?"
"Skiba: Helllll Yeah!!! I got an 8th of that hoe!"