gunfingering 

a technique used to manually stimulate the female genitalia in which the index and middle finger are inserted into the vaginal canal and accelerating at a steady pace while the thumb is used to galvanize the clitoris. This method works best if the individual not receiving the maneuver imitates the sound that a gun makes while firing. Don't forget to cock the gun before you pull the trigger ;).

mohammed: yo, i was gunfingering some hoe this weekend behind k-mart

claude: did she cum?

mohammed: yeah I cocked it tight.

gunfingering by alicetits June 25, 2012