biff

someone you hate very much, they just don't know it.
the opposite of a best friend forever.

oh no here comes the biff. Why doesn't she ever wear a hair tie during races? She is such a freak i hate her so much.

by KAnne123456789 May 3, 2007

Biff

To smack someone in the back of the head with your hand flat. Just a little hit for something you did that was a mistake, dumb or uncalled for.

Biff him if he's not telling the truth.

by Cassandrajane March 29, 2009

Biff

Something that is really cool, something awesome and stellar

Whoa that movie was so biff!
How are u doing?, im doing pretty biff!

by Biff12345678 October 21, 2012

BiFF

A secret society, who meets to practice and discuss an ancient Armenian philosophy of the same name, little known to outsiders.

Biff reveals the combined knowledge of the last 4,000 years
OR
It is believed that the Biff elders held the Biff meeting in Isfahan, but this is only a suspicion.

by Virlm February 7, 2009

Biff

To throw or discard something

"hey, biff this wrapper in the garbage for me"

by CarolinelizabetH October 27, 2008

Biff

In short, a dick fart. The male version of a queef. Although this is physically imposable, it is a hilarious concept. Used as a derogatory term.

If you don't think this word is funny, your a biff.

by Bazooka Jay September 27, 2009

Biff

To accidentally exhale when taking a hit from a bong or marijuana pipe, causing the weed to fly out of the device.

Dude, you biffed it! Now we gotta pack it again and there's a burn mark in the carpet. Good one, asshole!

by John October 12, 2003