He is a redheaded 15-year-old who has a foul mouth and a terrible attitude.

He has a foul mouth, but he's actually a good big brother figure.

The witnesses said you'd a foul mouth on you.

He spoke hate from a foul mouth to the last.

I hate it when a woman has a foul mouth.

"Did you know that Learned Hand had a foul mouth?"

"A disgusting weed of a boy with a foul mouth."

Mikhail looked around, swallowing in a dry and foul mouth.

He has the foulest mouth I've ever run across and he's demanding to be let in.

He hadn't really learned anything from the prisoner, save that the man had a remarkably foul mouth.