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

To throw or discard something

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

by CarolinelizabetH October 27, 2008

BIFF

acronym for bone idle fat fucker. This species of man is a leach, takes everything with no thanks, but expects thanks for giving everything

Oi wake up ya BIFF it's 5pm, and ya still owe me £300

by SLYTH LORD October 13, 2004

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

biff

The main character in the book, Lamb The Gospel According to Biff, Christ's Childhood Pal. He invented sarcasm.

"La-la-la. Hey Roman guy, too bad about your getting stabbed. La-la-la. It's probably not a message from God or nothing. La-la-la. Telling you that maybe you should have gone home, la, la, la. Instead of oppressing the chosen people who God hisownself has said that he likes better than you. Fa, la, la, la." -Biff, when distracting a Roman gaurd so Jesus could bring a man back from the dead when they were young.

by Cricket June 19, 2004