Green’s Dictionary of Slang

1. (also geechee, geechy) unsophisticated, provincial.

1940		E. Caldwell Trouble in July 208: Never heard of him [...] but he sounds like one of those Geechee niggers [...] That breed’ll do anything to keep them from working .
1956		J. Blake letter 22 Aug. in Joint (1972) 87: The natives of this geechee territory eat rice three times a day.
1980		E. Folb Runnin’ Down Some Lines xix: He act geechie, you know, square. He [...] didn’t know no slangs.
1997		Simon & Burns Corner (1998) 273: [of a garment] Man, look at this geechy-looking thing [...] I ain’t wearing this outside.
2000		Ebonics Primer at www.dolemite.com 🌐 geechie Definition: a person who is very country who usually wears things like red shoes, velvet hats, etc. (i.e. pimp clothes) Example: Yooo, that nigga is geeeechie! Look at his yellow gators!
2002		‘Touré’ Portable Promised Land (ms.) 156: We Words (My Favorite Things) [...] Geechee. Grimey. Crimey.

2. of a black person, light-skinned, or having Native American forbears.

1980		E. Folb Runnin’ Down Some Lines 32: ‘Geechie’ [...] is used to identify both very light and very dark people. Also it is used to characterize Asians and blacks who have native American ancestors.
1990		S. Morgan Homeboy 378: I wants to see Savage suck some of this geechee poontang.