blue box

American  

noun

1. an electronic device used by phone phreaks to send out signals that unlock long-distance telephone circuits.

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blue box British  

noun

1. a blue plastic container for domestic refuse that is to be collected and recycled

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Etymology

Origin of blue box

First recorded in 1975–80

Example Sentences

But the blue box, dubbed the BlueChirper, emits a racket that is devoid of rhythm.

From Los Angeles Times

The source of the irritation is a small blue box installed in a stairwell leading to the market, the latest tactic used by property owners to deter unhoused people from camping out in the area.

From Los Angeles Times

The blue box joins a growing list of deterrents deployed by Southern California business owners and property managers who have taken matters into their own hands to address the homeless crisis.

From Los Angeles Times

I watched as he stuck both fists in his face to remove the saliva-drenched hardware, which he then placed in a little blue box.

From Los Angeles Times

“Got it,” she said as she carefully pulled down a pale blue box, its color faded with age.

From Literature