idiot light

English dictionary entry

Meanings

noun
  1. Any warning light or indicator on the dashboard of a car, designed to alert the driver to problems, such as the parking brake being on or the oil being low.

Pronunciation

en-au-idiot light.ogg

Word forms

idiot light idiot lights

Etymology

From idiot + light, suggesting that even a stupid person with no mechanical knowledge can recognize a problem when thus indicated.

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