Testicles
From Gomerpedia
Testicles are the oval-shaped sperm-producing organs in males contained within the scrotum. Because testes hang like icicles off a roof, that is how the name testicles came to be. The testicles are meant to be loved and caressed. Any trauma to the testicles will elicit the well-known and much-maligned testiculosoprano reflex, in which a male's normal voice jumps 8 octaves to express the discomfort and pain. For this reason, the United States Preventative Services Task Force (USPSTF) released guidelines recommending against getting kicked in the balls repeatedly[1].
Fun Facts
Did you know an octopus has 8 testicles? Wow!
References