A world commonly confused with NIGGER but are very different. Nigga is a word to call your homie's. NIGGER is a word to disrespect or look down apon blacks.
NIGGER: You; sup nigger. Them; the fuck you say to me !BANG! You; Dead
NIGGA: You; sup nigga. Them; sup homie
A word that is very popular to say in rap songs. People use this word as a human being. Anyone can be a nigga even if you are black or white. You can also use it amongst your Vros like my niggas (my homies). Its just a cool word to use that representing rap culture. People that are hating over this word should blame the rappers that start using this cool ass word.