Navajo Palm
An old sex technique that is essentially the act of fisting a female, whilst coitus is occurring, and then proceeding to use said fist to firmly grab your own penis (internally within the female) and jack yourself off. Most successfully performed with three participants, although skilled individuals can execute the move themselves.
Hell yeah I took that girl home from the Nickleback concert. She was pretty loose though and not much was happening, and I had hurry up to make it to Video Bible Camp on time, so I didn't have much of a choice but to bust out the Navajo Palm and finish myself off.