Retarded is an adjective used to describe people, who call the word "retarded" the "R-slur" or the "R-word".
Steve: "This is such a retarded thing to say, I can't even..."
Lianne: "D-did you just use the R-slur?"
Steve: "Oh, and you're retarded too, what kind of person calls it the R-slur? Lol"
the nigga who speak on behalf of yo ass
Deshaun is the spokesnigga for the local D&D club, dat nigga really know what to say to dem niggas