shake the head and wag the tail
Shaking one's head with one's tail, a Chinese idiom, Pinyin is B ǎ IW ě iy á ot ó u, which means happy or carefree. It comes from the book of songs of the Tang Dynasty.
The origin of Idioms
The first volume of the book of songs of the three collections of the Tang Dynasty: "the unicorn is swift, the lion is towering, wagging his tail and shaking his head, and the mountain forest welcomes him."
Analysis of Idioms
Shaking one's head and shaking one's tail
Idiom usage
The fish shakes its head and shakes its tail in the water. It doesn't know how deep it is. The first discount of the story of the fish basket by Wu Mingshi in Yuan Dynasty
shake the head and wag the tail
If you don't want others to know, don't do it - yù rén wù zhī,mò ruò wù wéi
be very hard up , and in fact ) be at a loose end - shí guāi yùn guāi