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A slow-witted dumb person.

From Colonel Lemuel Q. Stoopnagle, an entertainer a long, long time ago.
You stoopnagle! Don't you know better than to shave with my carving knife?
by Tuna Wanda May 21, 2005
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2
German dialect slang for possibly a bent or rusty nail; something useless. Usually used as a name for a child who is trying to be helpful but is not succeeding. See stupen├Ągel. Possibly arachaic. Does not refer to a thing or applied to an adult.
Ach, du bist 'n stupenaegel. Translation: You're a stoopnagle. (You are useless!).
by Otto2 December 16, 2013
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3
a stupid, ugly, uninteresting person. Someone with absolutely nothing of intrest to say. A normal,healthy person wiyh an IQ less than 70. See sara Martinez
Shut the fuck up stoopnagle !
by Anonymous September 18, 2003
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