Pottymouth is the personification of his namesake.
Appearance[]
He is a man with a toilet for a mouth and swears often. Whenever someone uses his mouth as a toilet, they become a pottymouth too.
He happens upon two children playing with marbles, but one of them has to go to the bathroom. Pottymouth tells the boy "hop the fuck on, bitch", lowering his legs to the boy so he can use the toilet.
After the boy becomes a pottymouth, he tells the other boy to hop on and so on and so on and so on and on and on and on and yeah you get it.