Fart-Opener Share definition Flag A fart of such noise and strength it can just open a bottle of beer to open a cold one with the boys "Dude I swear to God I had Fart-Opener last night, it smelled! " Fart-Opener by Knee-Lover August 11, 2018 0 0 Get merch Get the Fart-Opener mug. Buy Now — $32.95 See more merch