rock paper scissors noun 2rock-paper-scissors verb 1forms 2 noun2 •A popular children's game using three hand signs representing rock, paper and scissors, frequently used as a tiebreaker. •Any situation where strategies are not transitive, meaning each strategy is strong against some strategies and weak against others in a loop such that there is no universally best option. rock-paper-scissors verb1 •To play a round of Rock–paper–scissors. formsrock-paper-scissored · rock-paper-scissoring