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.
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
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"I was a DUFF back in middle school."
by Vampie the queen October 20, 2021
Get the DUFF mug.The glue to a friendship. She/he will always support there friends no matter what. She can be a pain in the ass but everyone still loves her/him.
by ofiherjonfoqe[h November 5, 2018
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That place on the human body (particularly the female body) where the body makes contact when sitting-down, i.e. the erogenous area of the butt.
by anonymous March 3, 2023
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Man sorry i didn't hear you i was totally duffing out.
I really duffed out on that one
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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