じゃん拳

Etymology
There were various similar games originating in China that were played with the fist (, Japanese reading of ken). Possible derivations of janken include a shift from the pronunciation of,  perhaps the 🇨🇬 reading liáng kûn, or a shift from , suggested also by the game's alternative name of.

Noun

 * 1) rock paper scissors

Verb

 * 1) to play rock paper scissors