Yellow catfish
It is a Chinese idiom. Pinyin is g à oxi à nghu á nggu ó, which means pale yellow and describes unhealthy appearance. It's from Zhuangzi · lie yukou.
The origin of Idioms
"Zhuangzi · lie yukou" said: "my husband is in the lane of poor Lu, and he is in a dilemma. If he is in a narrow position, he is short of business."
Analysis of Idioms
Synonym: sallow and thin antonym: fat head and big ears
Idiom usage
The virtuous man died of being haggard, while the virtuous man appeared in the world. (Ming Dynasty, Qu you's a new story about cutting lanterns, biography of Xiuwen Sheren)
Yellow catfish
A donkey's lips and a horse's mouth - lǘ chún mǎ zī
Stealing chicken does not eat rice - tōu jī bù zhe shí bǎ mǐ
to do things that are beyond his power - qiǎng rén suǒ nán
being in a humble position , one 's word spoken will not carry much weight - shēn qīng yán wēi
The wind and rain are like a dish - fēng yǔ rú pán