Doing a fish Share definition Flag "Doing a fish" is to place bets on sports games and or horse racing with the outcome of zero return. Real late changeover. Reeks of "doing a fish" 🐠 this weekend….. 0/3 Doing a fish by TNBC May 19, 2022 0 0 Get merch Get the Doing a fish mug. Buy Now — $32.95 See more merch