Scrotole

The flap of skin inside a mans scrotum, a hole/cavity which is located underneath the base of the penis slightly off to the left/right side. See if you can find it by making a hook with your finger and just below the base of your penis by the side off to the left/right press against your scrotum and pull up-wards. (you may have to wiggle your finger a bit to get it in)

commonly used in schools in reference to one who tucks his genetelia(penis)between his legs in order to be a woman