rat run

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rat run

A minor roadway, usually one that passes through a residential area, that is used as a bypass for drivers who wish to avoid traffic on larger roads or motorways. The road works over on Broadway have made our street into a rat run, so be sure to keep a close eye on your kids with all these cars zipping by.
See also: rat, run
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
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