tummonia Share definition Flag It's a mixture of tuna and ammonia that kinda smell that catches the back of your throat. "Stacey didn't wash her undercarriage for two weeks her mum said her knickers smelled like tummonia tummonia by WilliamWallace88 September 20, 2020 0 0 Get merch Get the tummonia mug. Buy Now — $32.95 See more merch