The act of having sex doggy-style and having someone hide in the closet. The other person quietly sneaks out and takes over for you. You then go outside and wave to her from outside the window.
I was doing this drunk girl last night and gave her the magic trick, you should have seen her face!
The deadly art of turning the lights off before sex and walking out of the room as your friend walks in making sure the girl is facing a window you can get to, you have your friend fuck the girl when she thinks it is you, you walk over to the window tap and wave shocking the girl.
Matt and I gave Misty "The Magic Trick" last night, I wish I got the look on her face on tape!