YES--a friend from "N'awlens" told me that one twenty years ago. You're the first person I've ever seen actually USE it!
Now that I am too far away from the big easy, you don't know how much I miss being able to use lagniappe, neutral ground and beaucoup (meaning a lot, like in I got beaucoup to do) - pronounced boo-coo. You also go by someone's house when you are going for a visit. You might also say, where ya at for hello. I was a New Orleans transplant, and still have that east Texas/Arkansas/Oklahoma base to my accent, even after moving to Idaho and then Utah, and you'll never get me to stop saying Y'all or got instead of have,(as in, I got some, or I ain't got none) but my sister-in-law, born and raised in New Orleans sounds like she's from Brooklyn.