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[bif] /bɪf/ Slang.
a blow; punch.
verb (used with object)
to hit; punch.
Origin of biff1
1840-50, Americanism; perhaps imitative


[bif] /bɪf/
1. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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Examples from the Web for biff
Contemporary Examples
Historical Examples
  • Any old time she wants anybody strangled or stabbed and you aint handy, she can call on your friend biff.

    The Making of Bobby Burnit George Randolph Chester
  • After that biff on the coco I only wanted some place to crawl into.

    The Pagan Madonna Harold MacGrath
  • biff Perkins an' his gang o' gorillers is out thar somewhar, not fur off, huntin' a chance fur deviltry.

  • A second later biff had grappled him, and together they went to the floor.

    The Making of Bobby Burnit George Randolph Chester
  • But honestly, biff, did you ever see me go into a game where I was a loser in the end?

    The Making of Bobby Burnit George Randolph Chester
  • biff Bates laughed as he clambered into the tonneau with Bobby.

    The Making of Bobby Burnit George Randolph Chester
  • He soon learned what a “punch below the belt” meant, and a “biff in the eye” and several other fighting terms.

    A Modern Cinderella Amanda M. Douglas
British Dictionary definitions for biff


a blow with the fist
(Irish, school slang) a blow to the palm of the hand with a strap or cane as a punishment
(transitive) to give (someone) such a blow
Word Origin
C20: probably of imitative origin
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for biff

"to hit," 1877, imitative (as a sound effect, from 1847). Related: Biffed; biffing. As a noun, attested from 1881.

Online Etymology Dictionary, © 2010 Douglas Harper
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Slang definitions & phrases for biff



  1. A blow with the fist; sock •Biff as the sound of a blow is attested in 1847 (1890+)
  2. A stupid young woman (1980s+ College students)


  1. : He wouldn't quit, so she biffed him (1890+)
  2. To fail; flunk (1980s+ College students)
The Dictionary of American Slang, Fourth Edition by Barbara Ann Kipfer, PhD. and Robert L. Chapman, Ph.D.
Copyright (C) 2007 by HarperCollins Publishers.
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biff in Technology

/bif/ (Or "B1FF", from Usenet) The most famous pseudo, and the prototypical newbie. Articles from BIFF are characterised by all uppercase letters sprinkled liberally with bangs, typos, "cute" misspellings (EVRY BUDY LUVS GOOD OLD BIFF CUZ HE'S A K00L DOOD AN HE RITES REEL AWESUM THINGZ IN CAPITULL LETTRS LIKE THIS!!!), use (and often misuse) of fragments of chat abbreviations, a long sig block (sometimes even a doubled sig), and unbounded naivete. BIFF posts articles using his elder brother's VIC-20. BIFF's location is a mystery, as his articles appear to come from a variety of sites. However, BITNET seems to be the most frequent origin. The theory that BIFF is a denizen of BITNET is supported by BIFF's (unfortunately invalid) electronic mail address: .
[1993: Now It Can Be Told! My spies inform me that BIFF was originally created by Joe Talmadge , also the author of the infamous and much-plagiarised "Flamer's Bible". The BIFF filter he wrote was later passed to Richard Sexton, who posted BIFFisms much more widely. Versions have since been posted for the amusement of the net at large. - ESR]
[Jargon File]

/bif/ To notify someone of incoming mail. From the BSD utility "biff(1)", which was in turn named after a friendly golden Labrador who used to chase frisbees in the halls at UCB while 4.2BSD was in development (it had a well-known habit of barking whenever the mailman came). No relation to BIFF.
[Jargon File]

The Free On-line Dictionary of Computing, © Denis Howe 2010
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