Complex sentence: The nickname "Geechie" or "Geechee" was most commonly given to people from around coastal South Carolina and Georgia, and is an alternate name for the Gullah ethnic group of that region.
Split into simpler sentences: The nickname "Geechie" or "Geechee" was most commonly given to people from around coastal South Carolina and Georgia. It is also an alternate name for the Gullah ethnic group of that region.