先下手为强xiānxiàshǒuwéiqiángTop 40000Meanings1. (idiom) strike first to gain the upper handCharacters used先first下below手hand为because of强strongExamples1先下手为强xiānxiàshǒuwéiqiáng，后hòu下手xiàshǒu遭殃zāoyāng。Get them before they get us.