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blue box

an electronic device used by phone phreaks to send out signals that unlock long-distance telephone circuits.
Origin of blue box
First recorded in 1975-80 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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Examples from the Web for blue box
Contemporary Examples
Historical Examples
  • Then we perched, some on my fence and some on the blue box that held the garden hose.

    The Believing Years Edmund Lester Pearson
  • He spent another hour in hunting for the blue box, but without success.

    Joe The Hotel Boy Horatio Alger Jr.
  • The wreck of the blue box was left behind, for it was rusty and worthless.

    Joe The Hotel Boy Horatio Alger Jr.
  • And when they get our package, and take out that pink or blue box, they'll be as pleased as if we'd made them a present.

    Fanny Herself Edna Ferber
  • "Yes, Joe, all in the blue box—the papers and the money—And the blue box is—is—" Again the sufferer began to cough.

    Joe The Hotel Boy Horatio Alger Jr.
  • "And if I can't find the blue box I'll get along without it," he told himself.

    Joe The Hotel Boy Horatio Alger Jr.
British Dictionary definitions for blue box

blue box

(Canadian) a blue plastic container for domestic refuse that is to be collected and recycled
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Slang definitions & phrases for blue box

blue box

noun phrase

An electronic device enabling one to make long-distance telephone calls without paying: the alleged use of an electronic ''blue box'' to avoid telephone tolls (1970s+ College students)

The Dictionary of American Slang, Fourth Edition by Barbara Ann Kipfer, PhD. and Robert L. Chapman, Ph.D.
Copyright (C) 2007 by HarperCollins Publishers.
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