slingshot
noun [ C ] US uk/ˈslɪŋ.ʃɒt/ us/ˈslɪŋ.ʃɑːt/ (UK catapult)
投射器;石弩;弹射器
a Y-shaped stick or piece of metal with a piece of elastic (= material that stretches) attached to the top parts, used especially by children for shooting small stones
Compare: sling noun