fall foul of

Also found in: Legal.

fall (a)foul of someone or something

 and run (a)foul of someone or something
to get into a situation where one is opposed to someone or something; to get into trouble with someone or something. Dan fell afoul of the law at an early age. I hope that you will avoid falling afoul of the district manager. She can be a formidable enemy. I hope I don't run afoul of your sister. She doesn't like me.
See also: fall, foul, of

fall foul of somebody

to upset someone, so that they do not like you and try to harm you Officials who fall foul of the mayor find themselves exiled to the most boring departments.
See also: fall, foul, of

fall foul of something

  (slightly formal)
to break a law or a rule, and often be punished If their market share grows too large, they will fall foul of anti-monopoly laws.
See also: fall, foul, of
References in periodicals archive ?
We don't want to scaremonger but lavish corporate hospitality could fall foul of the new legislation.
But Tenby mayor Trevor Hallett is hoping the crop won't fall foul of a second freezing patch.
Two Chinese singers have become the first people in the country to fall foul of new rules banning lip-synching nearly two years after widespread criticism of miming at the Beijing Olympics' opening ceremony.
The MPs say e-Borders breaches free movement rules and may also fall foul of data protection laws.
AN advert telling patients they can choose which hospital they go to today became the first NHS publicity to fall foul of watchdogs.
At the same time we will be helping honest local traders to ensure they do not fall foul of the provisions.
Retailers could fall foul of age discrimination laws if they target students on holiday when looking for extra staff over Christmas.
A 13-year-old boy has become the latest player to fall foul of golfing red tape.
BUSINESSES in Liverpool are being warned not to fall foul of TV licensing laws during the forthcoming World Cup tournament.
The new regulations are confusing, and parents need to understand that there's a pounds 30 fine if you fall foul of the law.
On the question of a female Archbishop of Canterbury, likely to be strongly opposed by many Anglicans in Africa and Asia, he said that the churcla would fall foul of Britain's Sex Discrimination Act if its highest post were denied to women.
CHECK you are properly insured if taking your car abroad as many British drivers fall foul of foreign motoring rules, claim the British Insurance Brokers' Association.
The insurance pool, led by German insurer Allianz AG, is said to be considering closing the pool because of fears that it may fall foul of European Union competition rules.
BEDDAU'S trip to Tredegar and Cross Keys clash at Llandovery are the latest of tonight's Division One games to fall foul of the weather.
German champion jockey Andrasch Starke became the first rider in three years to fall foul of the no-drinks rule when he missed out on five rides at the big Boxing Day meeting in Hong Kong -and then had the ban lifted awaiting the outcome of a blood test.