The origin
A partly filled plastic bottle is thrown so that it rotates and lands on its base, which works because the liquid shifts in flight.
How it spread
It became a global trend in summer 2016 and was banned in many classrooms.
What it means
Skill-based rather than joke-based. The satisfaction is physical, and the physics are genuinely interesting.
Follow the source
Short editorial summary written by Random Access Memes from the sources above; the wording is ours, not theirs. Every link was checked for a live response on September 13, 2026.
