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When a mullet meets with a mustache continuously to form a particularly unappealing fashion statement. It is also sometimes accompanied by a beard.
Girl 1 "Dude, did you see Jeremy?"
Girl 2 "No... why?"
Girl 1 "He went and grew a mulstache."
Girl 2 "NOOOO!!!! That horrible hair invasion of the face?"
Girl 1 "That's what I'm sayin."
by DiscoxKate May 31, 2007
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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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