regard as useless
As a Chinese idiom, Pinyin is sh ì R ú t ǔ Ji è, which means to ignore. It's from Mencius, under the leaves.
Idiom usage
To show extreme contempt for
Examples
Salt merchants are rich and luxurious, and many literati and bureaucrats are dazzled when they see them. You are a weak woman, and you treat her like a mustard, which is very respectable.
Analysis of Idioms
Synonym: treat like grass
The origin of Idioms
Mencius · lilouxia: "if you treat your ministers like dirt, then your ministers will treat you like enemies."
Idiom explanation
Mustard: grass. As if soil, grass general cheap. Metaphors don't matter.
Chinese PinYin : shì rú tǔ jiè
regard as useless
The emperor will never die. huáng huáng bù kě zhōng rì