A person born with only one testicle. Or a person who lost their testicle due to a disease or a freak accident.
Damn! Joey put whipped cream on his nuts and his fat girlfriend bit one off!! Now he's a one testicillian!
by tabatha August 29, 2003
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one testiciallian • One Direction • One • one hit wonder • One Piece • one time • One-shot • one upper • one-night stand • one up