Mcfart-poof Share definition Flag When you sneeze, cough, cum and shit yourself all at the same time! Ooooh, I jus did a Mcfart-poof!.Oh Man! Joey just let out a Mcfart-poof! Mcfart-poof by Mcfart-poofer May 13, 2010 0 0 Get merch Get the Mcfart-poof mug. Buy Now — $32.95 See more merch