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1.
A combonation of two words. Straight and Nigga
Man you got in his face hella hard...you is stigga.
by wwwwww June 29, 2006
 
2.
Combination word of "Stinky" and "Nigga" used in reference to a nigga who is stinky in some way, shape, or form.
"That fuckin stigga stole my bike!"
by Stigga October 23, 2006
 
3.
What you call a stupid nigga.
Fuck, that Michael Irving is one crazy stigga!
by Cab Calloway March 05, 2008