嘴欠 Traditional form: 嘴欠 Pinyin (reading): zuǐqiàn Definitions: (coll.) unable to control one's tongue prone to say sth nasty Characters: 嘴 - mouth, lips 欠 - to lack, to owe; to breathe, to yawn Traditional characters: 嘴 - mouth, lips 欠 - to lack, to owe; to breathe, to yawn