Foul-mouthed

a.

1.

Using language scurrilous, opprobrious, obscene, or profane; abusive; as, noisy foul-mouthed women all shouting at once. So foul-mouthed a witness never appeared in any cause. - Addison.

Adj.

1.

foul-mouthed - using foul or obscene language; "noisy foul-mouthed women all shouting at once" Synonyms: foul-spoken

dirty, foul-spoken