foul something up Definition

foul
adj

1. Disgusting.

Example: a foul smell
2. Soiled; filthy.

Thesaurus: soiled, dirty, filthy, fetid, contaminated, nasty, putrid, polluted, tainted; Antonym: clean, pure.
3. Contaminated.

Example: foul air
4. colloq
Very unkind or unpleasant.
5. Said of language: offensive or obscene.

Thesaurus: lewd, obscene, offensive, vulgar.
6. Unfair or treacherous.

Example: by fair means or foul
7. Said of weather: stormy.
8. Clogged.
9. Entangled.

noun

1. sport.
A breach of the rules.

verb fouled, fouling

tr & intr
1. sport.
To commit an act against (an opponent) which breaches the rules.
2. To make something dirty or polluted.

Thesaurus: dirty, contaminate, pollute, taint, sully, defile; Antonym: clean.
3. To contaminate or pollute something.
tr & intr
4a. To become entangled;

Thesaurus: clog, choke, snarl, entangle, jam.
Form: foul up (also)
tr & intr
4b. To become entangled with something so as to hinder its movement or functioning.

adverb

1. In a foul manner; unfairly.

Derivative: foully
adverb

Derivative: foulness
noun

Idiom: fall foul of someone or something

See under fall.

Idiom: foul one's nest

To do something harmful or dishonourable to oneself or one's family.

Etymology: Anglo-Saxon ful.

Phrasal Verb: foul something up

To clog it.To mess it up; to bungle it.