A man who regularly sexually assualts random female, unprovoked. He is very skilled in this kind of ambush and can usually penetrate a woman (or baby) in under 3 seconds.
Girl 1: Holy shit! what was that? Were the fuck is my hymen?
Girl 2: Probably one of those hymen ninjas.
Girl 2: Probably one of those hymen ninjas.
by PooStainJedi March 12, 2009