biff

noun:
1. A bestie, best friend
originally derived from the common acronym BFF: best friend forever
When said out loud, is pronounced like "biff"

Taytay and Alec are always together. They're like biffs.

by michthebitch September 10, 2009

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.

by AlexHag November 24, 2006

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!"

by Lon September 1, 2005

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.

by Alex Osmond March 28, 2005

biff

A casual term for sexual intercourse

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

by Richard r January 11, 2008

biff

BFF
if you sound "BFF" out, it sounds like "biff"
so instead of people saying B.F.F., they say biff.

"aww i love you biff"

by aseresssgadsr September 19, 2008

biff

derived from the abbreviation "BFF" which stands for "best friend(s) forever."

noun: one's best friend, a term of endearment.

adjective: a way to describe and/or name your best friend.

"do you know that girl morgan smith?"
"of course, she's my biff!"

best friend: "oh i'm so upset!"
you: "what's wrong, biff?"

by mandi van a. April 7, 2008