Jersey Knee Bone 

When a female masterbates a male using only the backside of her knee causing a high flying nut.

Wow! That Jersey Knee Bone gave me the best nut of my life!

Jersey Knee Bone by ShmattyMags April 19, 2020

Kneeboned 

(verb) To have your world viciously rocked, usually by an Australian man.

Great sesh yesterday, we got Kneeboned multiple times.

Kneeboned by Neftesla May 18, 2019