Spattergroit
Contrary to the name it doesn't mean getting spattered in the groin. A contagious disease and what probably should've killed off Ron Weasley. Extremely common amongst ginger bastards as the early symptoms include freckle-like warts. Later symptoms include not being able to speak and having large bricks come out of your bottom and mouth.
It was very unfortunate, but the ginger bastard has caught spattergroit