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 ?
Trained at the School of the Art Institute of Chicago and Bard College, Chan has had a long history of social activism; most recently, from December 2002 to January 2003, he spent a month in Baghdad on the eve of the war working with Voices in the Wilderness, an aid group whose contact with Iraqi civilians regularly ran afoul of US trade-sanction regulations.