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

duff sack

a duffle bag filled with illegal substances usually marijuana

I dropped my whole paycheck on a duff sack of that icky sticky leaf

by flash gordon9989 March 12, 2009

duff

dam ugly fucking friend

that girl is a duff

by mariodros September 7, 2017

Duff

Designated Ugly Fat Friend

That girl is our duff

by confident black girl January 28, 2015

Daddy Duff

A fine gentleman descended from Father Duffy, who often times pushes 🅿️, and on occasion sleeps with women whilst off of the holy herb

Keath: "Yo its Daddy Duff"
Bitches: "Omg hes so hot"

by QuickGiveThisManMouthToPenis February 10, 2022

Duff

“Designated ugly fat friend”

“Your literally a duff..”

by Goaty_boaty September 18, 2021

puff duff

When you have too much fun (read: alcohol) and you're lame the next day and stay in bed and not participate in vacation activities.

In Jamaica, Jim partied too hard and the next day stayed in and was a total puff duff.

by CurtisCam1 April 19, 2018