Clam Shelling

A medical procedure during which you put on a 15 lb lead cannonball shape module around your testicles to protect them from irradiation. While the procedure is quite cold and difficult to not pinch yourself, it is not that hard as long as you are not attempting to put your penis inside the module.

Patient: "Gahhhhhhhhhh. Phew, Nurse I swear to god this is so difficult, but I have finally completed the Clam Shelling!"

Nurse: “You...uh - you don’t …. uh … You don’t actually have to put your penis in it?”