duff

1. Designated Ugly/Fat Friend
a friend that hot girls have to make themselves feel hotter
2. someones butt
1. Every hot girl I see seems to have a duff
2. Get off yer duff and do some work!
by Poopie pants 2 October 26, 2007
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DUFF

Designated Ugly Fat Friend/Designated Ugly Fat Fuck/Dumb Ugly Fat Friend

The infameous beer that Homer Simpson drinks on The Simpsons

a teenage pop star who has some talent but is over shadowed for being a "poseur"
That girl is a TOTAL DUFF

Homer Simpson always drinks Duff beer.

Hilary Duff is alright but everyone calls her a "poseur"
by Mike October 12, 2005
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Duffs

Deemed UnFit For Society
Used when describing someone that acts like they are a person who just escaped an insane asylum and doesn't belong among the common people
Person One: Dude did you see those new pics of lindsey lohan getting totally smashed at the party?

Person Two: No but I can imagine

Person One: Yeah it's not even funny anymore, she's been duffs in my book for a long time

Person Two: True that, she needs to do us all a favor and check herself into a clinic or asylum for that matter
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DUFF

The Dumb Ugly Fat Friend. Every hot girl has one, and their objective is to cock block all the guys. And for every DUFF you need a grenade and thats ur friend that would try to hit anything.
by ATICUS September 12, 2006
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duffs

Boobies, bazungas, chesticles, sweater kittens, flesh pillows, ta-tas.
"Snap, check out that chicks duffs! i'd like to bury my face in them."
by Rob Engle August 29, 2005
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The DUFF

Dang, look at the girls. Kimberly must be The DUFF.
by slickbick September 07, 2016
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Duffs

a) Breasts that have not been enhanced by plastic surgery.

b) Natural, albeit smaller breasts.

Popularized in the mid-2000s when American actress Lindsay Lohan was rumored to have undergone breast augmentation surgery. Lohan vehemently denied the charges, while her declining reputation became constant tabloid fodder.

This was in contrast to her old "rival" Hilary Duff, who still maintained a squeaky clean public image and had a visibly smaller bust line compared to Lohan. Hence the term Duffs was born.

Antonym: Lohans
Person A: "Her boobs are so small compared to that chick with the implants."

Person B: "At least they're Duffs. If she's cool with that, more power to her!"
by RealFakeBoob March 02, 2010
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