开口成脏 kāikǒuchéngzāng to use foul language Origin Definitions Defs Strokes Stroke Words Sentences Sents 开口 開口 kāikǒu verb + noun to open one's mouth to open one's mouth; to start to talk; to speak out or make a request成 chéng verbparticle to become to become; to turn into; to change into脏 髒 zāng noun obscene obscene; vulgar; low-class in thought or speech