Dead hand gang 

An exclusive club whcih can only be joined by sitting on your arm so that you lose all feeling in your hand before masturbation. This apparently makes it feel like someone else is doing the work for you.

I joined the dead hand gang whilst imagining that your mum was tossing me off last night.

Dead hand gang by predator25 April 28, 2009

Dead hand gang 

Sitting on your hand for 10-15 minutes, until you're hand goes numb, then masturbating.
Originates from the UK television show, The Inbetweeners.
Also known as the 'Dead Hand Game'

I joined the dead hand gang last night over a picture of your mother!

Dead hand gang by Cheeky Definition Cunt January 23, 2016