Meaning

2 senses
  1. A fictional item, the subject of a fool's errand.

    Near-synonyms: skyhook, left-handed monkey wrench, left-handed smoke shifter, blinker fluid, muffler bearing, relative bearing grease, pigeon's milk

  2. A Ferris wheel or carousel, due to their central location.

Origin

Carny slang, from the custom of sending a rube on a quest for the (non-existent) “key to t

Carny slang, from the custom of sending a rube on a quest for the (non-existent) “key to the midway”.

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key to the midway — meaning, examples, forms, synonyms | Krumeto