Foulmou'thed. adj. [foul and mouth.] Scurrilous; habituated to the use of opprobrious terms and epithets.
My lord, he speaks most vilely of you, like a foulmouth'd man as he is, and said he would cudgel you. Shak. H. IV.
It was allowed by every body, that so foulmouthed a witness never appeared in any cause. Addison.
My reputation is too well established in the world to receive any hurt from such a foulmouthed scoundrel as he. Arbuth.
Now singing shrill, and scolding oft between,
Scolds answer foulmouth'd scolds; bad neighborhood I ween. Swift.