ingrown virgin

A woman who, no matter how hard she tries, cannot get laid.

"Why is it that no one sees how available I am? Why isn’t it clear that I don’t choose to be an ingrown virgin?" (from the book "Superior Women" by Alice Adams

"I hear she's the worst ingrown virgin in the village" (from the Play "The Enemies of a Bishop" by Christopher Isherwood & WH Auden)