What is D.u.f.f.?
1.
An abbreviation for 'Designated Ugly Fat Friend'. Often in many large groups of women (usually adolecents) there will be a D.U.F.F. as a means to look better by comparison.
I only hang out with her becuase I need a D.U.F.F., otherwise, she'd be, so, history.
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2.
The Designated (/Dumb) Ugly Fat Friend.
The cock-blocking friend of the hot chick you're trying to hook up with, often the target of the wingman.
I was totally in with this chick and then her D.U.F.F. totally cock-blocked me!
-or-
I'll take her, while you distract her D.U.F.F.!
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3.
Designated Ugly Fat Friend---Usually hangs around extremely Hot girls and DUFF's usually tend to be girls themselves
Bruh do u see dat D.U.F.F. hangin wit Jennifer
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4.
1. Dumb Ugly Fat Fuck
2. Designated Ugly Fat Friend (the less harsh defintion)
That we-gotta-go-girl is such a D.U.F.F.
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5.
Dumb Ugly Fat Friend.
Damn that bitch is a D.U.F.F. Damn your sister's hot, and who's the DUFF?
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