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

duff

dumb ugly fat friend

"cant she see she is the duff"

by go to bed April 19, 2017

Duff

To scarf down food at a rapid pace; to eat large amounts very fast.

After I smoke, all i want to do is duff and sleep

by Fontaine June 30, 2017

Duff

dumb ugly or fat friend...

Becky invited her duff so she doesnt get wasted and blows any willing cock within sucking distance

by NorCal Slanger March 27, 2017

duff

designated, ugly, fat friend

That fat bitch over there, with those other girls, is so ugly... she is such a duff.

by Liz O'nya August 15, 2016

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 July 17, 2016

DUFF

Designated ugly fat friend

“Trudez is Tims DUFF”
“Luciano will always be a duff”

by Ashkiba February 5, 2018