Circles by Digitalism - https://youtu.be/xqw6u1cSZB8
In the English Engineering System, the unit of mass is 1 pound mass (lbm), and is equivalent to the amount of matter that weighs 1lb at 1G. I won’t argue that EES is a good system, but it does at least have a kludged unit for mass. It has an equally kludged unit for force, too, called pounds force (lbf).
Sadly no, it stands for “Ruchnoĭ protivotankovyĭ granatomet,” or “Hand Held Anti-tank Grenade Launcher” in English.
https://youtu.be/6YsNRnZRgg8