biff 

Spliff, cannabis cigarette, joint, doobie etc etc

Let just sit here and smoke a massive biff.

Smoking that biff was a poor idea before work.

biff by AlexHag November 24, 2006

Biff 

<n>.A nickname that is given to a big dumb idiot that walks like an ape.

"Com on Biff don't be such a fucking dumb ass"
"Geoffrey is a perfect Biff he always doing stupid shit"

Biff by lukeRad September 3, 2007

biff 

The nemesis of Marty in the Back To the Future film series. Marty manages to encounter several different relatives of the Tanner family throughout the three BTF movies.

Biff - "How about you make like a tree, and get out of here!"

biff by Lon September 5, 2005

Biff 

A term used to describe:
1. The action of hitting something or knocking something over.

2. A holder for your weed. Usually a folded-in-half small booklet; i.e: a game manual. Also acts as somewhere to hand break your greens. *Also known as a Biffer, called biff for short.

- "Dude pass me the biff²!"
- "You biffed¹ the biff²!" (You knocked over the weed holder!)
- "I biffed¹ him in the face good!"
- Throw in on the biff²!

Biff by 709944RepresentBah December 9, 2012

biff 

to screw something up in any way, minimal or major can constitute the use if the word "Biff".

Don't biff this one up like last time.

biff by Alex Osmond May 13, 2005

Biff 

To fuck something up

"Jack knocked over my drink and biffed"

or just simply say "you biffed"

Biff by Tkrizz January 4, 2008

biff 

A casual term for sexual intercourse

Tim's nuts resembled coconuts, he hasn't had a biff in weeks apparently!

biff by Richard r January 16, 2008