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Acronym for Rolling On the Floor Jacking My Dick. Used when something is too funny to use, lol, lmao, rofl, ect...
Used in a sentence- ROFJMD, that was the funniest crap I've ever seen.
by Haywood Jablome 69 August 07, 2010
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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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