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to fall down in a spectacularly embarassing manner
whoa, you biff it like, twice a day on those stairs
biff it by ipodgurl January 12, 2008
A french man (or person) who enforces the buffalo drinking game. One who calls another out for drinking an alcoholic drink with their dominant hand.

A wild french person. Particularly one who likes to party.
Look at Biffalo ride his bike from the roof into the pool.
Biffalo by UpChuck December 9, 2012

wet biff 

A big fat poon which has just been involved in a long period of sexual activity. The hair on the poon is saturated and sticks to other areas of the poon or inside leg
Wow I fucked that bird so hard last night she had a right smelly wet biff by the time I'd finished with her
wet biff by Womb raider June 14, 2016

Biff Tannen 

A quick tempered, slow witted jock, often in the context of a bully. A Biff often compensates for his lack of knowledge with force or otherwise aggressive action.

The term is derived from the bully in Back to the Future I and II who harassed George McFly not only in has past, but also through the future.
Biff Tannen by Fred Rogers February 25, 2004
From the acronym 'BFFL', which stands for 'best friends for life'.
He was acting like we were biffles, even though I hadn't heard from him in years.
biffles by Hudson December 23, 2004

bring back the biff 

To promote and encourage the punch up or biff back to Rugby League.
Reg yells at the tv, "Bring Back the Biff!"

Steph shouted excitedly, "Crocker's bringing back the biff!!"
bring back the biff by soandso November 10, 2008