Def 1: a Euphemism for Nigga. Etymology: Since we've buried the "N" word, we needed another term to use when the only word that would work was the "N" word.
Def 2: People who claim creole heritage but are just from Louisiana.
Def 1: I can't stand raggedy ass Gumbos.
Def 2: That mf ain't Creole... he jes an ol Gumbo.