v. To strike or punch; n. A blow or punch.
This fist is going o biff you!
by Exploding Boy February 09, 2003
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 August 06, 2006
A toilet, more notably a portable one.
Hey guys, want to push over that biff?
by Shad0wbane March 12, 2006
Someone's boyfriend.
i'd like to introduce you to my biff, mike.
by frsssstv February 27, 2006
To break wind
That biff smelt nasty
by James October 23, 2003
1. To have sexual intercourses with another creature; usually human

2. To masterbate

3. To ejaculate
1. "Max biffed katie last night; its not awkward at all"

2. "I just biffed one out"

3. "Apparently billy biffed all over his face."
by Max Mather December 14, 2010
A scouse way of saying, 'cigarette'
Come 'ed lad, let's go outside fora biff
by trolleyman2 November 06, 2010
To have sex with someone. The act of biffing, to be or to be biffed.
"I'd really like to biff lucy, she's very fit."

or

"I biffed steve's mum last night!"
by FTH1865 November 11, 2009

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