Using an anesthetic agent to create a numbing sensation over the users penis to still allow erection, but dismiss any feeling in the area. This allows the user to masturbate his penis without any feeling creating a sensation that the user is jacking off another person.

When someone goes to the gym and spends 90% of the time on their phones scrolling through social media

The opposite of the stranger. Accomplished by sticking your dick in a cooler filled with ice cubes until it goes numb, and then jerking yourself off pretending that you're jerking off someone else.

When you lay on your cock until it falls asleep so it feels like you're jerking off a stranger. As opposed to a Stranger, where you sit on your hand until it falls asleep, then masturbate for the sensation of being jerked off by a stranger.

When you sit on your dick, then give your self a handjob. It makes it feel like you're giving someone else a handjob.

The "Stranger" is a sex act, whereby a person sits on his hand until it is numb before masturbating, so that it will feel as though someone else is giving him a handjob.

The "Reverse Stranger" is the act of sitting on your own genitals until they are numb, so that when you masturbate it feels like you are pleasuring another person.

this is the most idiotic thing i've ever heard of. numbness is caused by lack of blood flow. an erection requires excessive blood flow. you can't have both! if you gave this definition a thumb's up, you need to go back to 8th grade health class.