Biff 

To fall, very painfully.

Dude, I just biffed so f'n hard, look at my ass.

Biff by xlxjackelxlx March 19, 2011

biff 

best friend, generally the ultimate best friend

derived from the word bffl

Elendea is my biff, we have known each other for 6 years.

biff by Nicole August 30, 2008

biff 

n. An oafish character

Hey, look at that biff over there.

My Brother is a complete biff.

biff by Exploding Boy February 9, 2003

biff 

A toilet, more notably a portable one.

Hey guys, want to push over that biff?

biff by Shad0wbane April 16, 2006

biff 

v. To strike or punch; n. A blow or punch.

This fist is going o biff you!

biff by Exploding Boy February 9, 2003

Biff 

Biff - Brotha id fight for

-fck is good with that niqqa?
--- fuckup thats my biff
- ur what??
-- biff niiqqa ," brotha id fight for"

sos^ sosity^ bx^

Biff by SO$ity October 18, 2010

biff 

(n) a vagina

her biff is mad sexay

biff by missy November 24, 2002