well, I know it was originally referred to as African American Vernacular English, and draws it's roots primarily to the facets of Southern American English, as well as drawing influence from Creole Dialects.
I also know that maybe, if you take offense, it may be in your best interest to remove the stick from your bum, call me a "racist" if you need to, blame Trump or something, and then be on your way to discuss my cultural inordinateness with the rest of your buds at Starbucks. That is, of course, if you take offense.