When you bang a chick so hard she bleeds and it makes a popping noise

When a woman bends over and makes the asscheeks clap out sideways, like in the porn videos, and the pussy opens and closes a little bit when the cheeks go outwards

slang for trying to have sexual intercourse with a woman. Usally a person who would say that term, will never get that pussy

When you put a balloon in a woman's vagina, then blow it up, then penetrate with a penis or penis-like object, popping the balloon.

no physical pooping of the femal vagina takes place but the hips and ass is gyrated in a popping motion

thrusting your pussy(vagina) in a forward motion.
a dance females do.

when a girls vagina has such a distinct smell, that in the morning, after a long night of finger-bangin', when going to eat a pop-tart you are overwhelmed by the smell of that pussy.