upfuck Share definition Flag A sexual position in which a standing male fucks a woman who is being hoisted, with no external supports (eg, walls), up to waist level. "Hey Johnny, what's up?" asked Jane. "My penis. Let's go upfuck, right here, right now." upfuck by AJ Kim December 3, 2003 0 0 Get merch Get the upfuck mug. Buy Now — $32.95 See more merch