Goonflick

A form of female masturbation where she goons multiple times in a row and keeps on flicking her bean while in pain , this causes the vulva to become so red and darkened that it starts resembling a flick , hence the name goonflick.

Sara: "I didn't get enough sleep last night, I was so horny that I goonflicked for five hours, I still can't close my legs while I sit"
Amanda: "wow, that's much longer than I did (3 hours)"