duff
Duff
Designated. Ugly. Fat. Friend
Ex. Britny is the duff in the group
Lisa and jen are hotties or the atravtive one and britney is ugly and fat compared to them
It can be guys (not alway ugly or fat) lets say they are freshmen and are like wingmen to upperclass men
*They are the ones who the girls go to ask if the jocks or alist guys in the group are single

The 2015 movie "Duff" is about a girl who is the duff in her group of friends at highschool who was unaware that she was the duff and was set oit to change it

"Duff " is not a positive thing to be called
by just a teen in 2k15 March 31, 2015
duff
Duff
Designated. Ugly. Fat. Friend
Ex. Britny is the duff in the group
Lisa and jen are hotties or the atravtive one and britney is ugly and fat compared to them
It can be guys (not alway ugly or fat) lets say they are freshmen and are like wingmen to upperclass men
*They are the ones who the girls go to ask if the jocks or alist guys in the group are single

The 2015 movie "Duff" is about a girl who is the duff in her group of friends at highschool who was unaware that she was the duff and was set oit to change it

"Duff " is not a positive thing to be called
by just a teen in 2k15 March 31, 2015
Designated Ugly Fat Friend

Every group of friends has one. The duff is someone who makes the rest of the group look better. The duff hides the rest of the group's flaws.

However the duff doesn't technically have to be ugly or fat, they could just be not as good looking, or maybe they are more approachable.

To know if your the duff just think have any guys/girls asked things about you or have they only spoken about your friends?
An even easier way to find out is to look around your group of friends and if you can't spot the duff then it's probably you!
Then again EVERYBODY is someone else's duff, so there's no need to worry. You are a duff.
Deal with it!
Be proud!
Take advantage of it!
"Damn! Those girls are hot, but maybe we should speak to their duff before approaching them!"
by JustAnotherGirlOnline March 30, 2015
(Designated Ugly Fat Friend) A DUFF doesn't always have to be fat or ugly, sometimes a DUFF can be cute, but they're there to make the rest of the group look better and to be the approachable one for anyone seeking inside info.
Man 1: "Hey do you know if that hot girl is single?"
Man 2: "I don't know, go ask her DUFF"
by YolkyYellow March 30, 2015
DUFF means designated ugly fat friend

this person doesn't have to be fat and ugly to be a duff they are usually the one everyone goes to for information on one of the pretiter friends in the group
"why doesnt she get invited to parties, because she's our duff"
by makaaay March 28, 2015
DESIGNATED UGLY FAT FRIEND
Two hot chicks at school they usually have a ugly nasty ass friend but this friend is one that their close with . Say a fit boy walks past the duff of the group they only talk to her to get into her pants
by SMITHY March 17, 2015
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