foul-mouthed

Third-person singular simple present indicative form of foul up

present participle of foul up

Synonym of polecat

plural of foul marten

A kelt or salmon, which, having spawned, still remains in the fresh water before effecting its annual migration to the sea.

An animal that feeds on carrion or the like; a scavenger. / (obsolete) A horse that has bad eating habits.

plural of foul feeder

Synonym of bad-tempered

simple past tense and past participle of foul one's own nest