Tā zài lǎobǎn miànqián xiàng gǒu yáo wěiba yīyàng tǎohǎo.
He fawns over the boss like a dog wagging its tail.
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culture
Compare the four-character idiom 摇尾乞怜 (yáowěiqǐlián, 'wag tail begging pity'), used for someone who grovels for favor. 狗摇尾巴 is the colloquial, descriptive version of the same image.
