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an offensive term for an arrogant person who professes to know everything in 1 and only one subject but in reality they know absolutely nothing in that subject.
please do not confuse a know-it-all with a pundit, or someone that is blowing fairy dust up your skirt. they are 3 completely different things.
by sexydimma August 05, 2014
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Jul 29 Word of the Day
Someone who used to be a potential girlfriend/boyfriend, but no longer is.
Tim: Zack, is that your exgirlfriend?
Zack: No, she's an expotential. We never actually dated...
by brownsuite September 24, 2011
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2
a person who often makes up facts or stories to make themselves sound or appear smarter, when in reality they come off as a true idiot. They often refer to books or movies that have to actual academic holding.
She's such a know it all, she tried telling me I needed a cup of salt to make chocolate chip cookies to bring out the flavor.
by khenderson November 29, 2010
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