so good you'll slap yo mama Share definition Flag When you have a great meal, like a good southern steak, that it'll make you slap yo mama. Billy: Joe, what should I have on the menu? Joe: Get the steak. It's so good you'll slap yo mama! so good you'll slap yo mama by Weirdo Sheep August 12, 2018 0 0 Get merch Get the so good you'll slap yo mama mug. Buy Now — $32.95 See more merch