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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 18, 2011


Duff

An alternate name for penis.

"He wants to put his duff where?"

by TeamTripod July 8, 2009


duff

Designated Ugly Fat Friend

A DUFF doesn't actually have to be fat or ugly, just less attractive than the people they are with

Also, a person can be one of the hottest in one group of friends, and the least hot (and therefore the Duff) in an other group

The duff is the less attractive friend and therefore easier to talk to than the hotter friend you are trying to score

by Astr1767 June 12, 2015


Duff

1. Designated Ugly Fat Friend
2. A more polite way of saying ass or butt

1. She's such a Duff
2. My Mom always tells me to get off my duff and go outside

by SauceMilliken July 30, 2017


DUff

Something that tastes nice.

Oooooo, this chocolate is duff

“This pizza is duff”

by E L L E T123 December 13, 2017


Duff

V. To plan a sexual encounter and back out soon after, to stand up.

He said he wanted to be with me, but then he duffed out and changed his mind.

by Laurie-Bell February 1, 2009


Duff

DUFF - Designated Ugly Fat Friend.

Doesnt have to be fat or ugly. The weak link in the group of girls. The least attractive but it the most approachable. Use her to speak to the girl in group you want to score with.

"Damn Cindy so hot, how do i even get a chance to speak to her?"

" its simple my friend, get to know her DUFF Sarah & youre in"

by Jamattack March 21, 2016