duff

3
[ duhf ]
/ dʌf /

verb (used with object) Slang.

to give a deliberately deceptive appearance to; misrepresent; fake.
British. (in golf) to misplay (a golf ball), especially to misjudge one's swing so that the club strikes the ground behind the ball before hitting it.
Australian.
  1. to steal (cattle).
  2. (formerly) to alter the brand on (stolen cattle).
to cheat someone.

Origin of duff

3
1830–40; back formation from duffer, in the slang senses “something inferior or counterfeit” or “a peddler of inferior goods”
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for duffing

British Dictionary definitions for duffing (1 of 3)

duff1
/ (dʌf) /

noun

a thick flour pudding, often flavoured with currants, citron, etc, and boiled in a cloth bagplum duff
up the duff slang pregnant

Word Origin for duff

C19: Northern English variant of dough

British Dictionary definitions for duffing (2 of 3)

duff2
/ (dʌf) /

verb (tr)

slang to change the appearance of or give a false appearance to (old or stolen goods); fake
Australian slang to steal (cattle), altering the brand
Also: sclaff golf informal to bungle (a shot) by hitting the ground behind the ball

adjective

British informal bad or useless, as by not working out or operating correctly; duda duff idea; a duff engine
See also duff up

Word Origin for duff

C19: probably back formation from duffer

British Dictionary definitions for duffing (3 of 3)

duff3
/ (dʌf) /

noun

slang the rump or buttocks

Word Origin for duff

C20: special use of duff 1
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