(n.) the male love interest of a strong female protagonist, typically little more than eye candy. He possesses little personality or depth of character.
(n.) a damsel in distress who is male.

(N) A corruption of the common epithet dude. It is synonymous with dude, but exponentially more lame -- unless used ironically.

The term first appeared (to my knowledge) on the television adaptation of horror author Stephen King's Quicksilver Highway. A hitchhiking drifter addressed his driver as 'dudemar' inspiring rage in the latter. This is the common response.

(n.) the male love interest of a strong female protagonist, typically little more than eye candy. He possesses little personality or depth of character.
(n.) the male version of a damsel in distress.
(n.) an attractive male with little brain power or practical skills. Typically seen as belonging to a socially mobile female.