biff

To lightly (or not so lightly) directly hit a person's forehead with the palm of the hand, usually in a playful way

"Oh c'mon...get outta here!" (biff)

by Prime December 22, 2002

biff

when someone messes up really bad

commonly used by ace s3 reign

"wow, darcie just biffed stunt two"

"hannah is a total biff"

by cheergurl123 April 22, 2017

biff

To the Longboarding community including a wide range of longboarders such as the hippie longboarder, to biff is to lose control of your longboard and fall off causing physical damage to one's self. Biff or 'Biffing' also relates to eating the pavement where one who falls off their longboard hits the ground face first, usually hitting their mouth on a concrete or paved surface (not to be confused with curb stomping).

I totally biffed on my longboard and took a mouthful of concrete.

by JohnnytheFLASH May 2, 2010

biff

(VERB) To borrow with no intent of returning, to spend all gas money on reese's, dip, four loco's, alchol, beer and/or scratchers.

Yo can I biff a dip bro?

Yo I can I biff food from you?

by scrawning gigantor July 8, 2011

biff

A derogatory word for the female genitalia.

"Mate, it was 'angin, she just stood there and got her biff out"

by JonnehG April 19, 2008

biff

a derogotory term for a fat woman. Who has a pouch of fat in the front that gives her the appearance of having two butts. BIFF = Butt in the Front

ABE: Look at that butt in the front

George: whoa she's a biff

by el presidente McCheese September 10, 2008

biff

A somewhat archaic term for throwing something with force.

She was going spazzcakes, so I had to biff her into the wall.

by Lauchlin November 20, 2007