Atlanta Sundae Share definition Flag When you come upon an outhouse at a concert or something and its mostly filled with shit and cum mixed together. Dude don't use the middle outhouse, there is a ferocious "Atlanta Sundae" in there. Atlanta Sundae by KorKraos August 25, 2017 0 0 Get merch Get the Atlanta Sundae mug. Buy Now — $32.95 See more merch