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

  • Davel23
    link
    fedilink
    211 month ago

    You may be thinking of “balls out” which refers to centrifugal regulators that are usually used on steam engines.

    • @ThatWeirdGuy1001
      link
      English
      11 month ago

      I just assumed it was an exaggeration. Putting the balls to the wall meant having them wide open