When a woman has just completed her period and wants a little extratime before jumping back in the sack again.
After a week of abstaining from sex while my girlfriend had her period, I was flabbergasted when she told me that she was still on an extended vaginacation.
Involuntary muscle contractions of the pelvic floor muscles. Treatment options vary, most common is PT through a pelvic floor or sex therapist.
Common symptoms are painful intercourse or being completely unable to have intercourse, "hitting a wall."
Mary: Oh no I started my period, do you have a pad?
Jane: No but here use one of my tampons