duff
1 Americannoun
noun
verb (used with object)
-
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.
-
to steal (cattle).
-
(formerly) to alter the brand on (stolen cattle).
-
-
to cheat someone.
noun
-
organic matter in various stages of decomposition on the floor of the forest.
-
fine, dry coal, especially anthracite.
verb
-
slang to change the appearance of or give a false appearance to (old or stolen goods); fake
-
slang to steal (cattle), altering the brand
-
Also: sclaff. informal golf to bungle (a shot) by hitting the ground behind the ball
adjective
noun
-
a thick flour pudding, often flavoured with currants, citron, etc, and boiled in a cloth bag
plum duff
-
slang pregnant
noun
Other Word Forms
Inflected Forms
Participles
Conjugated Forms
Present
-
duffsimple
-
duffssimple
-
have duffedperfect
-
has duffedperfect
-
am duffingprogressive
-
are duffingprogressive
-
is duffingprogressive
-
have been duffingperfect progressive
-
has been duffingperfect progressive
Past
-
duffedsimple
-
had duffedperfect
-
was duffingprogressive
-
were duffingprogressive
-
had been duffingperfect progressive
Future
Etymology
Origin of duff1
First recorded in 1885–90; expressive word, perhaps akin to doup
Origin of duff2
First recorded in 1830–40; dialectal variant ( Scots, North England) of dough
Origin of duff3
First recorded in 1830–40; back formation from duffer, in the slang senses “something inferior or counterfeit” or “a peddler of inferior goods”
Origin of duff4
First recorded in 1835–45; originally Scots dialect; perhaps metaphorical use of duff 2, by association with Scots dowf “decayed, rotten,” deaf “(of soil) unproductive, springy to the tread”; see dowf
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
At Northeastern University, Hilary Duff brought a similarly nostalgic tone, speaking to reinvention and early-career uncertainty in a way that resonated with younger audiences.
From Salon • May 16, 2026
I could flood this list with Championship Manager 01-02 wonderkids - there is room for more later - but we'll just give honorary nods to Maksim Tsigalko, Mark Kerr, Mike Duff, Kennedy Bakircioglu et al.
From BBC • May 5, 2026
A spokesperson for Duff, 41, who is the older sister of pop star Hilary Duff, confirmed to People that she and Rosenberg “ended their relationship” at the start of the year.
From MarketWatch • May 1, 2026
Before Miley Cyrus, before Sabrina Carpenter, before Olivia Rodrigo, Duff arrived in the early 2000s as a Disney kid with pop-idol ambitions.
From Los Angeles Times • Feb. 20, 2026
It was a close- up of Duff, smirking at the camera.
From "Beauty Queens" by Libba Bray
![]()
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.