waiting to see opponent's move in rock-paper-scissors; playing a waiting game
Literally 'delayed-throw rock-paper-scissors'; cheating by throwing after seeing the opponent's hand. Figuratively, waiting to act until the other side's move is clear, often in negotiations or strategy.
Waiting to see my move in rock-paper-scissors is cheating.
Playing a waiting game in negotiations isn't fair.
Standard kanji-katakana spelling. ジャンケン is commonly written in katakana.
Variant with だし in hiragana; less common but seen.
Compound of 後出し (あとだし, 'delayed throw') and ジャンケン ('rock-paper-scissors'). The exact origin is uncertain, but it likely emerged as a colloquial term for the cheating tactic.