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A person who enjoys throwing rocks into cow pats as a form of entertainment.

May also be used as an insult when no good ones will come to mind.
You're such a Pat slapper
by renidragger October 02, 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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