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DUFF

Abv. For Designated Ugly Fat Friend. Usually the one person more approachable in a group and the one who is less attractive than all the others in the group. Sometimes a girl will approach a DUFF and start to flirt but after a while will begin to ask questions about another hotter member of the group.
Man #1: Dude, that's your job as the DUFF
Man#2: What did you just say to me?
Man#1: You're a DUFF, Designated Ugly Fat Friend.
Man#2: That's so messed up.
by Sugary sweet April 7, 2017
mugGet the DUFFmug.

DUFF

Designated Ugly Fat Friend

Every group of friends has one. The duff is someone who makes the rest of the group look better. The duff hides the rest of the group's flaws.

However the duff doesn't technically have to be ugly or fat, they could just be not as good looking, or maybe they are more approachable.

To know if your the duff just think have any guys/girls asked things about you or have they only spoken about your friends?
An even easier way to find out is to look around your group of friends and if you can't spot the duff then it's probably you!
Then again EVERYBODY is someone else's duff, so there's no need to worry. You are a duff.
Deal with it!
Be proud!
Take advantage of it!
"Damn! Those girls are hot, but maybe we should speak to their duff before approaching them!"
by JustAnotherGirlOnline March 30, 2015
mugGet the DUFFmug.

duff

Two hot chicks at school they usually have a ugly nasty ass friend but this friend is one that their close with . Say a fit boy walks past the duff of the group they only talk to her to get into her pants
by SMITHY March 17, 2015
mugGet the duffmug.

Michael Duff OUT

The expression Swansea City fans use when Duff loses a game
Swansea lost again, Michael Duff OUT.
by Krj97 October 21, 2023
mugGet the Michael Duff OUTmug.

Duff

In online gaming, a duff is an inexperienced player who uses a new account to deceive other players into thinking he's a experienced player (smurf). The purpose is to frighten other player to thinking they are a experienced player and make them play worse thinking they have already lost. The expected result is to get easy wins thinking they are skilled by tricking the other players and get wins. The outcome is shown pretty quickly when the obviously don't have the experience to keep up after a few games.
So yesterday while playing CoD I saw this new account and was frighten it was a smurf, it was pretty easy to realize it was just a duff and I pwned him. Got to love dumb noobs.
by DevilReaper of Souls November 13, 2020
mugGet the Duffmug.

Duff

Wow that girl is such their duff.
by Alyssa j. Page is bad March 9, 2015
mugGet the Duffmug.

Duff

noun: The small particles of cannabis, or "shake", in the bottom of your bag of weed.

verb: To remove the shake from finished cannabis buds.
Noun: "Hey check out this pound of Blue Dream I got!"
Looks at bottom of bag, "I don't know man looks like theres an bunch of duff in it.

Verb: "Gotta duff that shit out bro."

"Have these packs been duffed?"
by Little Salt August 7, 2020
mugGet the Duffmug.

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