1. a douchebag.
2. a person who looks like a giant penis.
1. Bro, you ate the last of my Cluck-U. You are such a fucking thorpedo.
2. Alec Baldwin is a thorpedo.
by Righteous Fist August 15, 2008
Nickname of Australian superstar swimmer Ian Thorpe, the most decorated Australian athlete at the Olympics with 5 gold medals. Spelling derived from last name and definition from both his incredible speed in the pool and his trademark black bodysuit which he wears to all his competitions.
Even with the help of the Thorpedo, the Austrailian relay swim team could not defeat the US team.
by Natasha August 21, 2004
guy with large penis
Betty took it up the ass from a Thorpedo, now she can't walk!!
by steve January 11, 2005

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