Duff

Designated Ugly Fat Friend.

The friend who make her/his friends look good and perfect.

Harry:look at them! The perfect triangle!
Mads: You are right! Spencer, Abby and the other girl.
Harry: haha the duff?

Mads: yes

by E.Christin January 23, 2016

Duffer

A name for Velcro running shoes that look like the type an old person would wear.

Those shoes you got from the thrift store are real duffers!

by Whistlinphil September 15, 2016

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

D.U.F.F a friend that is used to make yourself appear attractive or popular

wow really their friendship group has a duff wow they are so shallow poor duff

by TechWhiz November 2, 2016

duff

The stuff left on the bottom of your weed bags. All the stems, crystals, and leafs. Often used as a cheaper alternative to buds in baking. Though often mistaken as good, and used in joints and bowls. Known to be sold for as cheap as 30-40 dollars an ounce.

Hey bro, got any of that duff? I need to make another's batch of weed brownies.

by fitzy_keegs January 13, 2017

Duff

A blonde chicks vagina.

"Hillary's duff"
"Go get you some of that duff over there"
"I bet that chick has a nice duff"

by Fagboyslim88 January 13, 2017