upper cut fart Share definition Flag Upper Cut Fart- When a person walks up to you with a fart trailing in behind, like an upper cut to the chin! Damn bro, this customer just threw an upper cut fart at me! upper cut fart by DeserTynker September 15, 2019 0 0 Get merch Get the upper cut fart mug. Buy Now — $32.95 See more merch