Used to refer between black people or wiggers to refer to each other.
Sometimes used between an akward white person and a black person. Usually ends with white guy feeling stupid.
As opposed to "nigger
." Nigger is a derogatory term mistaken as positive.
Nigga, however is used positively between black people. A twisting of the original word to remove the negative view.
White Guy-"Yo, wat be up, my nigga?"
Black Guy-"Fuck you, dipshit."
Wrong-"Damn, you see that nigger, Jethro? He had some mighty fine and proper bling."
Right-"Yo, nigga, why you playin me like dat'?