duff

designated ugly fat friend
the more approachable one

you are duff

omg Katey is such a duff in her friend group

duff

dam ugly fucking friend

that girl is a duff

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

Duff

An alternate name for penis.

"He wants to put his duff where?"

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

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

DUff

Something that tastes nice.

“Oooooo, this chocolate is duff”

“This pizza is duff”