yuff Share definition Flag 1) behavior that inconveniences others 2) to err 3) to act in a stupid or buffoonish way "He parked my car on the lawn and the cops towed it. That fucker owes me big time for that yuff." yuff by lingo monkey February 28, 2003 0 0 Get merch Get the yuff mug. Buy Now — $32.95 See more merch