Top definition
the time when stupidty becomes apparent in a female, but only when there is a male present
"Girls at PVMS suffer from awful guypidity, yah know?"

"Emmaleigh just had a major guypidity moment, fur shur?"
by x3Natalie May 11, 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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