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when the person does something so stupid that you can use the word dumb as a noun.
Jordy: "so, what your ethnicity?"

Larry: "My great Grandparents Immigrated here from Germany"

Jordy "oh, so you're from Germany? That makes you Germanese, right?"

Larry "... You're a Dumb"
by Ira Sex Ira 696969 November 03, 2009
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