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Duff

Designated-ugly-fugly-friend
The one friend in the group who doesn’t really feel like a friend Becuase of how irrelevant they are or feel and when in public is the one who gets asked for the phone numbers of the other attractive friends.
“Yoo you see those hella fine girls man”

“ yes sir I do”

“Go see if you can get their numbers
“ nahh I’m too pussy”
“Oh fairs, jus go ask the DUFF then, their there for a reason”
by Doorknobsontoast_420 July 11, 2020
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Duff

To Duff Out; A momentary lapse in reality shown by a vacant stare into a world of blank.
You just duffed out!

Man sorry i didn't hear you i was totally duffing out.

I really duffed out on that one
by Tazan August 22, 2011
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Up the duff

An old Australian Slang term referring to an unplanned pregnancy, first used in 1941 and all the way through to around the 70s. Rarely used now a days.
Person 1: What is happening to her?
Person 2: She's up the duff.
by Shen Bapri March 23, 2023
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Duff

A person who doesn't do anything productive with their life after high school - no job, no school, just vibes. Can also describe the act of being unproductive or lazy in general. The word originated from the last name Duffey, a kid who famously did absolutely nothing post-graduation.
Used as a noun:
"Don't be a duff — at least try to apply somewhere."
Used as a verb:
"I was just duffin' it all weekend, didn't move off the couch once."
"He's been duffing his life away since senior year."
Used as an adjective:
"That's the most duff thing l've ever seen — unemployed and still
Lplaining."
by Duffer555 July 21, 2025
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DUFF

Desiganted Ugly Fat Friend. A common acronym used in male cliques. Used to refer to the girl that the "hot chicks" bring along to distract the "Wingman" (every male clique has one, his job is to intercept the DUFF.) so the ycan have the more desirable males of the group.
"Dude, you sooooo got the DUFF tonight."
by TXwolfman817 February 24, 2009
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Duff Jam

bullshit, lying, contempt, vindictive, self serving, me only servitude.
I will not put up with any of your duff jam
by RenegadeLacrosse November 8, 2019
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duff hunting

A female trying to cover her defaults by finding another one worse than her.
Heather was duff hunting looking for a friend fatter, dumber, and uglier than her so maybe the boys would notice her.
by RayLee June 2, 2008
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