(Da Ugly Fucking Friend) A term to describe the less attractive females another female will have in company to make her seem more attractive or just a less attractive friend to more attractive female. (Originating in Bear, Delaware)
Jon: "Hey! did you see that girl that just walked by?"

Brandon: "Which one?"

Jon: "The one in the middle bro!"

Brandon: "Oh yeah, but she's only a 6 on a scale of 1-10 without those DUFFs."

Jon: "Yeah her other friends were pretty ugly."
by Boogey Man Brown October 5, 2011
Get the DUFF mug.
Timmy: Chelsey and sarah are so hot. why does she hang around with heather. she is so fat.
Bryan: Heather is their DUFF to make them look better
by shortman94 March 30, 2010
Get the DUFF mug.
DUFF stands for: designated ugly fat friend. A DUFF is typically hanging around the group of pretty, superficial babes. People who see the DUFF usually wonders why she is being seen with such hot chicks. DUFFs never get ass. DUFFs have never had a boyfriend. And DUFFs spend their friday nights masterbating.
Tammy is such a prep.
DANG, Felicia is looking fine tonight.
Lorena adds that latina spice to the group.
Erica is a hot cheerleader.
and then theres Marissa.
Well, every group of girls has to have their DUFF...
by jOCKIN ON YO December 16, 2007
Get the DUFF mug.
Dumb(or Designated)
Ugly
Fat
Friend
But really, those describing words do it an injustice. Every group of friends has a duff. the one who's approachable, a little less popular or pretty, and doesn't quite fit in. But the friends in that group also have more friends, and could be their duff. So in reality, we are all duffs.
A boy in my grade called me a duff before I knew what it meant. I found out two seconds later from a girl next to me, that it meant Dumb, Ugly, Fat friend. But she also said that I'm none of those things, and what he had said was highly redundant. (She started laughing and said really loud,"But he probably doesn't know what duff means either, and that a few of those words perfectly described him!")

Duff is also described in the movie, "The D.U.F.F". I recently watched it -for MATURE audiences only- and it gives plenty examples.
by innocence_is_treasured;) July 29, 2015
Get the DUFF mug.
Stands for Designated Ugly Fat Friend. A term used to describe a hot girls fat friends. Every hot girl has at least 1 Duff. Treating the Duff like a normal person may help your entry to the hot girls Vagina.
Hey, if your in with the Duff, Your in with the stuff!
by twisted_walker November 13, 2006
Get the DUFF mug.
Most commonly known as the girl that your hott date has to take along with her to the x dance. Your date won't go without her so she has to come along. The whole time she gets in the way of you two. Duff stands for designated ugly fat friend. Very terrifying moments have been caused by this race of people.
Bess: "Hey, we should go to Mikes this weekend."
Kailey: "Yeah, thats a great idea. We should take someone else, just in case things get a little too weird."
Bess: "Lets take Sarah. Shes always a good conversation peice."
Sarah= DUFF= Ugly, fat, facial hair, and zits
Everything every "man" wants
by Stanely Jr. October 7, 2005
Get the DUFF mug.
"Everyone has a DUFF"
Designated Ugly Fat Friend
Call up your DUFF...we can get her/him to drive
by xsiennax March 10, 2008
Get the DUFF mug.