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a nickname for a person who makes themself look dumb all the time on accident and on perpose
that kid is such a macobi
by cov3r3dinbl00d September 02, 2008
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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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