Three of the following names describe the same language or dialect spoken in the US today; which is the odd one out?

Boogalee (or Bougalie) or Yats (short for "Where y'at") are both Cajun terms for the dialect or language they use. Cajun is still spoken in the southern Louisiana bayous by as many as a quarter of a million people. They are the descendants of French speaking Acadians (Cajun is a corruption of "Acadian") who settled around 1604 in Nova Scotia and parts of Quebec and Maine, but were driven out by the British in the 1750s. The odd one out is Geechee which is the name used for their language by speakers of Gullah in the Sea Islands of Georgia and South Carolina. Speakers are descendants of slaves and Gullah may refer to them being of the tribe of Gola in West Africa.