Jesus nut

2 definitions

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#1·8h ago

(aviation, slang) The nut that holds the main rotor to the mast of some helicopters.

Origin: 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". Origin information sourced from Wiktionary contributors (CC BY-SA 4.0).

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#2·8h ago

(slang, metaphorical) A single point of failure with catastrophic consequences.

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