Duffed (v) - The act of getting used and or manipulated by an attractive, mentally unstable person of the opposite sex. Unfortunately this includes an abundance of flirting, profound mixed messages, and sexual enuendos that
don't actually lead to SEX, merely the illusion that it will. The
Duff usually ends by the
Duff-er getting back together with their original girl/boyfriend, leaving the
duff-ee with a killer case of blue balls/dry-gina.