Biff

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!

by ChknWngz April 20, 2016

biff

A slang term for cocaine in Aberdeen, Scotland.

“Oi mate fancy getting some biff tonight?”

“Yeah mate, let’s get fucking heaps of biff”

by Biffman April 10, 2021

biff

best internet friends forever

I know we've never met in real life but you're my biff. just sayin'. #NoHomo

by MeanMachine79 August 21, 2020

Biff chowder

To take a shit, defecate, rectally relief yourself.

Who was the last one to biff chowder in the toilet? They didn't flush....

by Zorba the FlipIrish December 21, 2021

Biff the Stiff

The act of calming down an erection using manual force in an awkward situation.

Jeez man, we're in Mothercare, biff the stiff!

by Souperman1234 September 4, 2010

Biff and chill mate

Biff and chill mate is when you smoke weed and watch Netflix and just chill and feel the vibe.

“You want to Biff an chill mate”
“That Biff and chill mate has got me steaming”

by Stayout March 29, 2019

Biff

biff, to hit into another vehicle off the road or to crash it with your vehicle

With cars
Person 1: "Ohh damn dude, i just biffed this car off the road"
Person 2: "his car is wrecked!"
With helicopters
Person 1: "I'm about to biff this chopper out of the sky"
Person 2: "why are you flying into their propellers!!????"

by Flan547 April 5, 2021