切齿咬牙 qièchǐyǎoyá to gnash one's teeth Origin Definitions Defs Strokes Stroke Words Sentences Sents 切齿 切齒 qièchǐ verb to gnash one's teeth To grind or clench the teeth together, used to express extreme hatred or anger; often appears in the phrase 咬牙切齿 yǎoyáqièchǐ.咬牙 yǎoyá verb to clench one's teeth To clench or gnash the teeth due to extreme anger or the endurance of great pain