n. An oafish character
Hey, look at that biff over there.

My Brother is a complete biff.
by Exploding Boy February 09, 2003
A large amount of fat on the lower stomach of a humain begin. The fat above the crotch. Mostly associated with morbidly obese people.
Damn, that bitch is fat, look at the size of her biff.

The man was so fat that his biff hung between his legs.
by Keiss June 06, 2006
To smack someone forcefully on the back of the head.
Tom biffed Erik for being an idiot.
by Islington March 07, 2006
Doing something that is both very dumb and very painful. causes loss of property or health, or both.
JC made a $20K BIFF by crashing his brand new jeep into the pond and boggin it out.

Pat was walking down the stairs at the club and he biffed hard right in front of some hotties.
by ericl May 03, 2005
to screw something up in any way, minimal or major can constitute the use if the word "Biff".
Don't biff this one up like last time.
by Alex Osmond March 27, 2005
When you fall off your skateboard. Falling really hard off your skateboard.
Yo, that dude just biffed trying to nollie trey that 10 set
by Piffman October 21, 2004
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
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

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