what is the pinch and roll technique

The pinch and roll technique is a way to scratch an itch on loose skin, typically the scrotum. It involves pinching the skin and rolling it between the fingers to relieve the itch. This technique is preferred over actual scratching, as the scrotal entity slides around under the fingers and makes actual scratching ineffective. The act of itching ones scrotum due to the fact that the area in and around the testicles is very sensitive to harsh forces.