Jesus nut

English dictionary entry

Meanings

noun
  1. The nut that holds the main rotor to the mast of some helicopters.
  2. A single point of failure with catastrophic consequences.

Word forms

Jesus nut Jesus nuts

Etymology

Possibly from the Vietnam War. From the notion that, given its critical function, if the nut were to fail, the only thing left to do would be to "pray to Jesus".

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