duff 

Dump
Ugly

Fat
Friend

That girl is the other's duff.

duff by Masker August 10, 2017

duff 

dam ugly fucking friend

that girl is a duff

duff by mariodros September 7, 2017

DUFF 

It means "Designated Ugly Fat Friend". They don't have to be any of those, but that doesn't mean they don't have friends more attractive than them. The DUFF is basically the least attractive one in the group.

"She's cute, but her friends are hotter. She must be the DUFF."

"He's the youngest in the team and acts as the Gatekeeper to the rest of the team. He's a DUFF."

"That teacher is being left out from other conversations... He's a teacher DUFF."

DUFF by WattpadBlogger September 21, 2017

Duff 

Designated Ugly Fat Friend is a person that you keep around to be more attractive and popular also known as the D.U.F.F

Two hot girls are sitting with a ugly girl. I feel bad for that Duff.

Duff by Alize Marie September 21, 2017

DUff 

Something that tastes nice.

“Oooooo, this chocolate is duff”

“This pizza is duff”

DUff by E L L E T123 December 13, 2017

DUFF 

Designated ugly fat friend

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

DUFF by Ashkiba February 5, 2018

duff 

Madi and lily (designated, ugly, fat friend)

Madi and Lily are such duffs!

duff by YLYILS May 26, 2018