Duff

Beer you wish you could have but never will.

I'm craving some duff right now bro.

by lemonberrypie August 4, 2017

duff

dick unimaginatively fat as fuck

a way to describe zackery duff

by not duff November 20, 2018

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

dumb ugly fat friend

"cant she see she is the duff"

by go to bed April 19, 2017

Duff

Knock someone clean out

Imma duff his dumbass

by Hatehatty6 March 8, 2020

Duff

dumb ugly or fat friend...

Becky invited her duff so she doesnt get wasted and blows any willing cock within sucking distance

by NorCal Slanger March 27, 2017

DUFF

(Designated Ugly Fat Friend) A DUFF doesn't always have to be fat or ugly, sometimes a DUFF can be cute, but they're there to make the rest of the group look better and to be the approachable one for anyone seeking inside info.

Man 1: "Hey do you know if that hot girl is single?"
Man 2: "I don't know, go ask her DUFF"

by YolkyYellow March 30, 2015