Top Definition
(n.) The presence of a third body in one's scrotum. Most likely cancer. Get yourself checked if you think you have a third testicle.
Douglas: "Neil, check this out! I have a third testicle."

Neil: "Doug, I hate to burst your bubble, man, but that looks like cancer."
by Blenderhead91 March 31, 2009
a uncommon slang used to show your distressed thoughts about something sexually displeasing.
nick: dude that guy has no dick! that is FUGLY!

austin: oh shit! i cant feel my third testicle!
by BUNCHO November 21, 2008

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