2 definitions by The gap girl

a person who makes statements that lack common sense.
DO NOT GET IT CONFUSED WITH A DUMB-DUMB.
Paris Hilton, Britney Spears, Lindsey Lohan, The Situation, Belinda Barbosa, Sarah Imhoff are all ding-dongs!
by The gap girl December 7, 2010
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A person who lacks both intelligence and common sense.
These people are worthless most of the time.
Candy from Two and a Half Men is such a dum-dum.
Ditzy people are all dum-dums.
by The gap girl December 7, 2010
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