Top Definition
The ability for a male to hold his prized piece in either trouser leg.
Friend: Are you a leftie or a rightie?
Victim of Ambipenstrosity: I am ambipenstrous.

Girl: Have you heard about John. He is ambipenstrous.
Boy: I want to be just like him when I am older!
by Prof Dr. Ambipenstrous October 16, 2012

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