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smart one is just a sarcastic way of saying someone is a dumn nut.
"most of my friends are smart ones"...or "man u r such a smart one"
by glonkabletotla June 09, 2009
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Someone who thinks they know everything but knows nothing.A polite way of calling someone a smartass around proper people or company.
Johnny, you are such a smart one. Or ....Nice going smart one.
by swissmocha April 01, 2005
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1. a know-it-all who's actually pretty dumb
2. someone who is considerably intelligent but makes a dumb mistake
1. "Yes, I agree, Nathan is a complete smart one."
2. "Nice, smart one."
by Druff, Dan September 23, 2017
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