when two guys double team a girl one doggy style and one in the mouth. The man doing the doggy style thrusts so the girl goes forward and sucks the penis of the other man. The momentum is then pushed back, creating a piston like effect, using Newton's laws of motion.
I gave her the old fuck piston with my buddy.
We had to make sure she was lubed up good before we performed the ol' fuck piston.
To put make your hand in the shape of a pistol (Thumbs up, Index and middle finger out) and then finger a girl from behind (2 fingers in snatch and thumb in the butt). Almost always done from a doggy-style position. Usually accompanied by pulling hair for a more degrading experience.
most common in GOW. or Gears Of War, an FPS game on the xbox, often played on xbox live. when you "down" a person, you go up behind them. with a snub pistol. and repeadedly fire, but not at them. this appears as iff you are rapping them up the butt. and it also pisses the other person off which may end up in a serious chain saw to the head. use with caution.
player 1: dude! You JUst GOt PiSTOL FUCKED
player 2: Fucking noob! ill Kill you!
It is said of the situation where a person has the bad luck to make contact with his testicles against an undefined surface or object, intentioned or not.
Given the nature of the word, it is more appropriate to design cases where the interaction is made with a moving object, for example, a ball.
Although it is extremely painful for the victim, it tends to be considerably funny to people who witness it.
Today in the baseball game the pitcher took a nutshot; the baseball hit him in the nuts.
Man, I just watched the funniest nutshot video ever.