Shitty vagina is a rare and devastating occurrence which in most cases is when a guy spends all night pumping drinks in to a girl at the bar until reaching the girls approval for late night drunken sex only to get her to his place to find out that he got her so drunk she shit her pants and as we all know dumb whores love tight clothing so tight in fact that it pushes the shit from her ass hole across the taint and strait in to the vagina there fore creating a shitty vagina