Nigga

A Male of any age and/or of no specific race or color. Man, Male, Boy.

COMMONLY heard used by males and females who are talking about another man.

The word has been evolving past the previous uses for it. It will only be heard as a racist word, if the one saying it makes very clear that racism was the intent. But these days, I hear it most often referring to a male of any race.

"Bitch, get out of my nigga's inbox."

"Niggas aint shit!"
"No, bitch, the niggas YOU fuck with aint shit" -Katt Williams