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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Designated ugly fat friend
Wow that girl is such their duff.
by Alyssa j. Page is bad March 09, 2015

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Dumb ugly fat friend
That dude is the duff of the friend group
by Tiasg March 08, 2015

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Designated Ugly Fat Friend
"hmm.., i think that shes is the duff of that group. I mean, everyone asks her things about the other people in her group.
by bk2305 March 07, 2015

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Duff stands for designated, ugly, fat, friend. In your group there are usually some hot people in there and then there's that one member that is the least attractive and that person get used to get info about other people
Guy at school : dude those girls are smokin except for the other one

Hot Girl in group: is the captain of the football team still single
Duff: yeah
Hot girl: thanks bestie
by perfectsayings February 21, 2015

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Designated Ugly Fat Freind
Jim: Bob you are my designated ugly fat friend (DUFF)
Bob: I'm not that fat!
by z108108 February 18, 2015

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It is a word you use for that one friend that you don't like. It means DESIGNATED UGLY FAT FRIEND
Kim: Ugh why is she always hanging around us
Nicki: Yeah she's just a DUFF
by Golden_Goddess February 11, 2015

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One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

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The Urban Dictionary T-Shirt

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The Urban Dictionary T-Shirt

Smooth, soft, slim fit American Apparel shirt. Custom printed. 100% fine jersey cotton, except for heather grey (90% cotton).

Buy the t-shirt