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A person of high negativity and rudeness. Anyone who idolizes themselves, believing that they are the be-all, end-all of the world. Someone who might have failed the first grade a few times for not knowing the difference between "to" and "too".
The other day I read this definition on Urbandictionary, and this author was such a Dack9.
by shishkaboble April 24, 2009
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