Jilling-On

Just as a guy may jack-off, when a lady is in the mood to get her hoo-ha hooed. She may proceed to "jill-on", or masturbate.

Lady 1: "So then what happened?"
Lady 2: "My dad walked in on me jilling-on, it was so embarrassing."

Big Jill

The most beautiful woman in the truck scene. Fuck that the most beautiful woman in the world. All 385 lbs is so sexy.

I love when Big Jill bounces her fat ass on me!