Gee·chee 
(g
ēch
ē)
n. Coastal South Carolina and Georgia 1. a. The Gullah creole.
b. A speaker of Gullah.
2. Offensive Used as a disparaging term for a person who speaks a nonstandard local dialect, as in Savannah, Georgia, or Charleston, South Carolina.
[Perhaps after the OGEECHE RIVER (around which some Gullah communities live) or perhaps from Kissi (Atlantic Niger-Congo language of Guinea, Liberia, and Sierra Leone) kìsì-, ethnic self-designation of the Kissi people (as in kìsìéí, the Kissi language).]