A dry patch of skin, resembling eczema, located along the crackage of a perky, cute, but slightly pale bum. In a well known case, it tends to habituate especially on the lower tailbone. Sometimes giant pimples may occur within the crackzema, resulting in another condition known as crackne.
Peter says: "Hey, why are there flakes all over the back of your black pants?"
Julia responds: "Because my crackzema was itchy."