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1 definition by Merz-a-chord

 
1.
DUC
Dumb Ugly Cunt- it is a variation of DUFF (Dumb Ugly Fat Friend)

The main difference being that a D.U.C. has no friends and is generally more bitchy- the DUC's bitchiness is enough to alienate her friends that already didn't care about her.

DUFFS travel as part of a flock where as DUC's fly alone
Carrie would be Lauren's DUFF except they're not friends any more so now she is just a DUC
by Merz-a-chord February 17, 2010