foulˈmart see foumart

foulˈ-mouthed or foulˈ-spokˈen adjective

Addicted to the use of foul or profane language

foulˈ-mouthˈedness noun

foul play noun

1. Unfair action in any game or contest
2. Dishonest dealing generally
3. Violence or murder

foulˈ-up see foul up below.

cry foul

To assert that a rule has been broken, and claim the penalty

fall foul of

1. To come into accidental contact with
2. To clash with
3. To assail

foul befall or foul fall (obsolete)

Bad luck to

foul up

1. To make dirty
2. To (cause to) be or become blocked or entangled
3. To spoil (informal)
4. To cause to fail or break down (informal)
5. To bungle or make a mistake in (informal; foulˈ-up noun)

make foul water (nautical)

To come into such shallow water that the keel throws up mud

foumart /fooˈmärt or -mərt/

A polecat (also foulˈmart)