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A bus that only accepts Kidz Bop, Macklemore, Matt OX, Jake Paul, and bass boosted remixes of all above artists.
You aren't a trap bus unless you bumpin kids bob Macklemore
by Trap Bus 123 June 01, 2017
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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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