尘垢粃糠

Explanation: Dust and dirt, Valley husks and rice bran. Yu lowly useless objects. 　　Source: "Happy Excursion" is the dust chaff, Tao Zhu Yao and Shun, who will still have. " 　　Examples: My life's ~, has long been completely washed off. ★ Guo "sea bath" Poetry Thesaurus:  Dust Unfulfilled