D.U.F.F.

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.

by B.a.m December 21, 2005