What does being kicked in the balls really feel like?
Like being kicked in the balls. To those who know, no explanation is necessary. To those who do not know, no explanation is sufficient. I won't claim women are incapable of experiencing comparable pain (you'd NEVER get me to go through childbirth!) but there's really no adequate frame of reference to _explain_ the feeling more specifically than "it hurts. A lot. Way more than you'd think it would. Be glad YOUR gonads aren't hanging around outside your body, OK? Evolution wants us to protect them even slightly more than it wants us to _survive_, so when we fail to do so, it punishes us."
Original Q&As here (Warning: no pictures, but probably NSFW).