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2.
Dim Bat is a phrase which was coined by Tess, a student at Wells College to replace the popular utterance: "Ding Bat"
George W. is a dim bat
by Sara Gregson August 21, 2006
 
1.
a person who is crazy and annoying.
Camille:I am going to get a razr phone haha hehe.

Trisha: Just shut up you dimbat that means nothing to me.
by Kittz April 04, 2007