Prone masturbation can simply be explained as a position of masturbation where a man lies face down on his chest masturbates. During this process, the person applies pressure on the erect penis for more pleasure. The pressure can be given either by pressing his hip to the bed/pillow under him or by pressing or even squeezing the penis with his palms very hard.
When a man lies down on his chest/stomach and masturbates, the position and act is called ‘Prone Masturbation’. The person usually applies pressure on his erect penis by pushing himself (his hip) towards the bed, pillow or the floor. Some may even thrust their hip into their hands by putting them around his penis.