biff
[noun]
Synonyms: blow, belt, bop, pound, smack, sock, thwack, wallop, whack, whop
[verb]
Synonyms: strike, catch, clout, devel, ding, hit, nail, slosh, sock, whack

[TahlilGaran] English Synonym Dictionary ▲

I. biff¹ /bɪf/ verb
[Date: 1800-1900; Origin: Probably from the sound of hitting]

1. [transitive] old-fashioned informal to hit someone hard with your fist Synonym : thump:
He biffed me on the nose.

2. [intransitive] informal to fall or hit something when riding a bicycle, snowboard etc

[TahlilGaran] Dictionary of Contemporary English ▲

II. biff² noun [countable] informal
an embarrassing mistake

[TahlilGaran] Dictionary of Contemporary English ▲

BIFF
Backhoe Induced Fiber Failure

[TahlilGaran] Acronyms and Abbreviations Dictionary ▲