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
The ability girls and women have developed to hold several items at once in one hand. The skill has been developed due to the lack of pockets in women's clothing.
I thought she'd need multiple trips to carry her phone, keys, wallet, and Starbucks to her car since she needed the other hand to open the door, but she used her impressive girl grip to carry everything in one hand.