flachoo Share definition Flag When you sneeze and fart at the same time. A flatulent sneeze. Also known as a snart. Whoops, I think I let out a flachoo. I sneezed so hard I almost crapped myself. flachoo by Poops McGillicutty January 17, 2025 0 0 Get merch Get the flachoo mug. Buy Now — $32.95 See more merch