Passing the Buck: From the Buck Knife to Dealer Buttons and How We Assign Responsibility

https://highstylife.com/why-blue-chip-became-safe-and-what-provably-fair-cryptography-reveals-about-that-assumption/

We use the phrase "pass the buck" in everyday speech to describe shifting responsibility, but that idiom has a surprisingly concrete origin: a physical buck knife or token used at poker tables to mark who was next to deal