find fault with
In Chinese, Pinyin is p í NGT ó UL ù NJI ǎ o, which means to talk frivolously about a woman's appearance. Now it's also a metaphor for being picky at will. From Zhou Libo's storm.
The origin of Idioms
The second part of Zhou Libo's stormy rain: "their eyes always look at the bride, and sometimes at the groom. They are shoulder to shoulder, hand in hand, commenting on each other, making a lot of noise."
Idiom usage
To make a comment at random
find fault with
strike where or when the enemy is unprepared - gōng qí bù bèi
not of imposing stature but strong and capable - duǎn xiǎo jīng hàn
Remove the chaff and block the wind - pái kāng zhàng fēng
get half the results with double the effort - shì bèi gōng bàn