Baylor Virgin
Named after undergraduate coeds of Baylor University who believe that they can retain their virginity by exclusively having penetrative anal sex rather than vaginal sex, thereby saving themselves for marriage. Similar to the Poophole Loophole.
Sarah wants to save her p-hole virginity for marriage, so she's only letting me get up in those butt-guts. So, she's not like a real virgin, but she is a Baylor Virgin.