Crusty dick syndrome

A genetic syndrome that causes your dick to become super crusty even while you age and the layers of skin build up to the point you hear a crunching noise when you fuck your wife/woman and it is incurable. It has been said that back when Christopher Columbus came to the Americas, he had this syndrome and many thought it was known as a severe STD that cause layers of skin to fall off from your dick and they used to think his semen crustified his dick, but nope he had it. If you have crusty dick syndrome, well i hope you are prepared to hear the crunch of your dick.

Steven:"dude have you ever heard? Mark has crusty dick syndrome"