chaff, husks, and distillers' dregs, traditionally eaten by the poor as basic food

在饥荒年代，人们不得不以糟糠充饥。

noun · a wife who has shared her husband's hardships and poverty (abbreviation of 糟糠之妻 zāo​kāng​zhī​qī)

他发迹之后，依然十分疼爱自己的糟糠。

noun · figurative term for something worthless or of poor quality; junk

学习古人的文化时要取其精华，去其糟糠。