I'm not sure
It is a Chinese idiom, which is used to describe people who have no merit and receive no salary. It comes from Shi Weifeng fatan.
Idiom explanation
This is a metaphor for receiving money without merit.
Idioms and allusions
[source] it is said in Shi · Wei Feng · cutting sandalwood: "if you don't hunt, there will be a county in huzhanerting. I'm a gentleman. I'm not a vegetarian. "
Discrimination of words
[pinyin code]: xhsk
Chinese PinYin : xuán huán sù kòu
I'm not sure
No heaven above, no earth below. wú tiān yú shàng,wú dì yú xià