the stranger

To lay on one's arm so as to deny the passage of blood and ultimately loose feeling in the limb, followed by the act of mastrubation with said limb.

Sitting on your hand until it falls asleep and then jerking off, eliciting the feeling of a hand job from someone else.

To jack yourself off after letting your hand go numb: see example below

latin: peregrinus
Almost all men and women masturbate either sitting or lying down, making this solo move a natural way to spice up a private half hour. Sit or lie on top of the hand you normally masturbate with, dramatically reducing the blood flow in your arm. For men, once you've lost feeling in that hand, dab on some lubricant and begin to masturbate. Women can start with fingers or a toy--the choice is yours. With no no sensation in your hand (but feeling everything down south), you can imagine getting frisky with a mysterious partner--who just happens to know exactly how you like it!
from the book: Dirty Sanchez's Guide to Buck Nasty Sex

When you deliberately get your hand/arm to fall asleep -example- like sitting on it for a prolonged amount of time and masturbating with it.

On a more artistic note, The Stranger is a song from the album of the same name by talented American singer & songwriter, Billy Joel. It is about how we think we know somebody and then find out often harshly that were actually strangers to us.

first you need to find a room on the first floor that has a large window. then you procede to fuck a girl doggy-style having her face this window. then about half way through you have you friend sneak in to the room and take you place. your friend must make sure that she doesn't notice that she changed partners. then you procede outside. after you get out side just simply stand infront of the window and wave.