摇头摆尾 yáotóubǎiwěi to be smug Definitions Defs Origin Strokes Stroke Words Sentences Sents 摇头 搖頭 yáotóu verb + noun to shake one's head To move one's head from side to side, usually to express a negative response such as disagreement, denial, refusal, or disapproval.摆尾 擺尾 bǎiwěi to gloat to be smug or overly pleased with oneself; often used in the phrase 摇头摆尾 yáotóubǎiwěi