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The toughest man you will ever meet in your life, The most manleyst man you will ever man, He will make your life hell
run workout you will cry duff Duff will make your life hell and you will like it
Duff by Big Boy balding November 2, 2011
Related Words
the action of punching someone. usually in the face because it is like you are caving it in. can apply to any area of the body however.
"Back up, before I duff you in your face!"
Duff by ~Reign~ December 5, 2006
–Adjective (duff)
questionable

-Noun (duff)
a nonsensical object or mass

-Verb (present-tense: duff past-tense: duffed)
to act without any sense of tact

-Adverb (duffly)
clumsily, without purpose or explanation

-Unit of Measurement (duffs)
a span of 10 decibels
"I dunno man... that steak looked pretty damn-diggedy duff..."

"Stop being such a lousy duff!"

"Remember that time Steve duffed lucratively for hours?!"

"He duffly fell in to the clearly labeled and fenced off tub of acid"

"That fire alarm rang at at least 1.5 duffs! It gave me otomycosis."

"that duff duff duffly duffed at 50 duffs!"
Duff by Boodda March 29, 2009
Designated Ugly Fat Friend
an unattractive female who accompanies a group of females to either:
A. make the others feel better about themselves
B. gain access into an a social circle she would never be able to attain
Man, I was talking to this really cute girl. Next thing I know, her DUFF arrived and cock-blocked me!
DUFF by pidgezzz March 21, 2010
duff
Duff
Designated. Ugly. Fat. Friend
Ex. Britny is the duff in the group
Lisa and jen are hotties or the atravtive one and britney is ugly and fat compared to them
It can be guys (not alway ugly or fat) lets say they are freshmen and are like wingmen to upperclass men
*They are the ones who the girls go to ask if the jocks or alist guys in the group are single

The 2015 movie "Duff" is about a girl who is the duff in her group of friends at highschool who was unaware that she was the duff and was set oit to change it

"Duff " is not a positive thing to be called
duff by just a teen in 2k15 March 31, 2015
If you don't know who the DUFF is in your group, odds are it's you
DUFF by KatLovesBands February 23, 2015