nigga

Nigger is cut out from the word Nigro which was used as an insult for African-American during the time of the slavary.
"Nigga" is a slang word for Nigger, which is primarely used by African-American (Ironicly..) when adressing other African-Americans.
-Though the word has been bestowed on even more races-

50 Cent : "If you're gonna shot than shot NIGGA"

by HellozL January 04, 2006