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A bumwaffle is a usless person who acts like they know EVERYTHING!!!! Bumwaffle people also like crumpets.
Girl: Did you see Tiffany talking to Brian about hoovers?
Girl 2 : Oh my god she was such a bumwaffle!
Girl: I know she told me she hates hoovers!
Girl 2 : She has no boobs also!
by Macccccccccccccccc October 21, 2007
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