This is usually reserved for the Africanus Unemployus species. This species is also spotted with a typical cash roll of 1's inside a $100 bill to make it appear dat he rich.
"Hey Justin Igger, did you get the bell ringing job with the Salvation Army?"
Also, this is very common with the 2's and sounds like you said "Hey Justa Nigger...!"
It can be shortened to: "Snig" "Sniggs" or "Snigger."