duck on a rock

Noun

(sometimes hyphenated) A traditional children's game in which multiple players stand behind a throwing line and each takes a turn throwing a stone (sometimes called a "duck") at a target rock (sometimes called the "drake") that is guarded by another player, such that when a player's thrown stone dislodges the target rock all the players run to retrieve their thrown stones, while the guard replaces the target and then attempts to tag a player before he or she can return to the throwing line. If the guard successfully tags a player, then the guard and player swap roles.

Japanese Meaning

「duck on a rock」は、伝統的な子供の遊びを指します。複数のプレイヤーが投げるための石（時には「duck」とも呼ばれる）を持ち、一定のラインの後ろから一人ずつ投げ、別のプレイヤーが守備役として、石（時には「drake」とも呼ばれる）を守りながら、投げられた石が標的となる石を外すと、全員が自分の石を取りに走るという遊びです。守備役は標的の石を再配置して、走ってくるプレイヤーにタッチすることで役割の入れ替えが行われます。