Side Duff

(1)When you are/are not in a relationship. and have a person you fuck on the side. Side duffs manly are just people who you don't really care about, but just only to fuck.

(2) Someone who likes/loves you a lot and buys you stuff and is always promised sex, but never get any in return.

(1) monica was Bill Clinton's Side Duff

by Pititfulfilth April 1, 2011

DUff

Something that tastes nice.

“Oooooo, this chocolate is duff”

“This pizza is duff”

by E L L E T123 December 13, 2017

The duff

Designated ugly fat friends

That one friend group that everbody avoides for obvious reasons

The people that sit near the benches at school are the Duffs of school

by Smonky August 21, 2021

Mickey duff

Mickey Duff was a well known boxing promoter whose name is now universally used as rhyming slang for marijuana.

Mickey Duff = Puff

If you want me to roll one up you’ll have to pass me my Mickey Duff.

by Loftier January 23, 2021

duff

Madi and lily (designated, ugly, fat friend)

Madi and Lily are such duffs!

by YLYILS May 26, 2018

DUFF

A term describing depressed, ugly, feminist females. DUFF for short.

"An ugly chick i know complained that i wasn't open minded enough about her genderless kitten, and that i was being sexist, and was also guilty of raping her."

"Oh she must be part of DUFF."

by mahaaham May 30, 2015

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."

by WattpadBlogger September 21, 2017