叩叩 kòukòu earnest Origin Definitions Defs Strokes Stroke Words Sentences Sents kòukòu earnest 叩 kòu reduplication to ask (literary) To ask or inquire; specifically to seek information from someone of higher status.kòukòu knock knock 叩 kòu reduplication to knock To knock or strike; commonly used in terms for knocking on a door.