In a recent post I had made reference to someone using the expression "ought notta." Honeypiehorse asked if people really say that around here and it made me want to go dig up an old post about a few little Southern language quirks. Not a comprehensive list by any means, but some of the more odd ones that you don't see every day.
If you're interested, you can see it over at my old group blog, Three Girls Grown Up. The article is called: English, Southern Style.