To slip, trip, fall, or generally mess something up. Generally resulting in embarrassment and regret.
Sam - slips in mud
Ryan - YOU GUYS, SAM JUST BIFFED IT!
Sam - Damn it! That was the worst biff ever, I'm fuckin' covered in mud!
Ryan - YOU GUYS, SAM JUST BIFFED IT!
Sam - Damn it! That was the worst biff ever, I'm fuckin' covered in mud!
by ChknWngz April 20, 2016
Get the Biffmug. by Zorba the FlipIrish December 21, 2021
Get the Biff chowdermug. by Stayout March 29, 2019
Get the Biff and chill matemug. by TheTittyMonster February 22, 2018
Get the Biffmug. The large labia lips often seen protuding through a woman's leggings, often known as mound of plenty.
"Jesus! Look at the size if those biff pads! "Or "look at that mound, she must have massive biff today"
by OddT0d May 7, 2024
Get the biff padsmug. 
