run afoul of (someone or something)

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run afoul of (someone or something)

To be in severe disagreement, trouble, or difficulty with someone or something; to be at odds with someone or something, especially due to disobeying rules or laws. Always look into the laws of any place you visit, or you may end up unwittingly running afoul of the local police. Ms. Banks has run afoul of this university for the last time. She is no longer welcome here!
See also: afoul, of, run

run afoul of

Also, run foul of. Come into conflict with, as in If you keep parking illegally you'll run afoul of the police. This expression originated in the late 1600s, when it was applied to a vessel colliding or becoming entangled with another vessel, but at the same time it was transferred to non-nautical usage. Both senses remain current.
See also: afoul, of, run
References in periodicals archive ?
They would not only put European companies and banks at risk of running afoul of US law if they continued to do business with Iran, but also unleash consequences that could significantly increase tension in the Middle East and ripple across Eurasia.
But to date big banks have steered away from doing business involving the country, out of worries over inadvertently running afoul of US authorities.
In response, Prince Jaime helped launch the CFTI, which ushers in a new model for validating that ores produced by certain secure Congolese mines can be exported and distributed in the global electronics supply chain without running afoul of US law.
A serious development has been the growing refusal of international banks to conduct Cuban business in dollars, for fear of running afoul of US regulators, he said.
One year ago, India's Central Bank stop making trade settlement payments to Iran because it feared running afoul of US sanctions and endangering its entire international payments mechanisms.
Indian payments were halted in December when India's central bank refused to clear payments any longer for fear of running afoul of US banking restrictions.