DUMF
DUMF is the one syllable word meaning dumb-fuck or dumfuck
Ellen forgot to turn off her headlights, what a DUMF
Dumf
Designated Unatractive Male Friend of a Woman whohangs around her all day (but is NEVER her husband or boyfriend) usualy also a GBF
I saw thsis hot chick but she was this ugly ass man with no teeth and was a fat as a van he was sucha DUMF