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A researcher paid to calculate the most depressing day of the year, Blue Monday, and the happiest day of the year based on several different factors.
"I wonder what date Dr. Cliff Arnall will calculate next, we still don't have the dates for 2008."
by L_Roku August 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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