A forseeable event in which the nature is so severe that the victims penis feels it is about to invert at the moment the particular event occurs.
Guy 1: I've got a penis inversion coming up tonight, she said she was disappointed and needed to talk to me.

Guy 2: Shit, I'm gonna make sure im at least 300 feet away at the time of impact as I value the functions of my penis.
by Teen Reject October 02, 2005
5 Words related to Penis inversion

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