A defensive form of urinating in a public toilet when surrounded by potentially gay men. The subject in question tucks his genitals between his legs and turns his back to the unirinal in order to urinate. This both removes the element of rear end exposure to the room at large as well as makes the subject seem as female as possible by creating a mock vagina.
I resorted to the mangina defence, they left me well alone
by allons-yallonso May 31, 2010