秕糠

秕糠	bǐ kāng	chaff / worthless stuff
秕	bǐ	grain not fully grown / husks / withered grain / unripe grain
秕	bǐ	variant of 秕
糠	kāng	variant of 糠
糠	kāng	old variant of 糠
糠	kāng	husk / (of a radish etc) spongy (and therefore unappetising)