Period Virgin
The stupid, unsuccessful way you feel when everyone has gotten blood spurted out of their uterus and you're sitting there, without any blood spurting out of your uterus, because you are "built different", or at least that's what you tell your math tutor who doesn't care in the slightest.
"Dammit I'm a period virgin, okay? I didn't wanna say anything because I know you just can't stand the thought of someone else not having blood gush out of one of their holes."