I never knew and got curious and looked it up. I guess it makes more sense than slamming your testicals against the wall.

  • Naich@lemmings.world
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    17 days ago

    Going “balls out” refers to governors on steam engines which used centrifugal force on a pair of balls to regulate the speed of the engine. At full speed the balls were out at the maximum.

      • BigBrainBrett2517@lemmy.world
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        16 days ago

        Have you ever accidentally stood on a ball (football/dodgeball) and tripped? If you have you may have an idea where the expression comes from. You trip really hard.