Top Definition
a boy who can't decide which girls he dates, and is usually not good at making conversation.
person 1 - hey hun whos that boy you'r dating?

person 2 - hey, yea not any more he was a dumdunne..

person 1 - aw ya serious? Too bad.

person 2 - Ino im put off boys altogether.
by donkydonky April 29, 2011

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