Nigga Shii

When an undeveloped, boorish individual, often of black heritage, with a personality disorder, is trying to fit in with other undeveloped, boorish black individuals, they often repeat this phrase.

Also could mean when a black person is trying to give a present to another black person; a present in the shape of either plain shit, or moving shit (a niglet)

Nigger 1: Ay, yo! Nigga!

Nignog 2: Nigga whattap? Nigga Shii!