1 definition by pidgezzz

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!
by pidgezzz March 21, 2010
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