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When you use a testicle as a microscope, normally to look at how small your penis is.
Person 1: So that's when i grabbed his testicle and used it to try and find his penis.
Person 2: Oh yeah i've done that, got to love a Testascope
by LittlePrettyQueef July 31, 2015
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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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