碎屑,残渣,下水,不能吃的部份,垃圾
Offal \Of"fal\, n. [Off + fall.] 1. The rejected or waste parts of a butchered animal. 2. A dead body; carrion. --Shak. 3. That which is thrown away as worthless or unfit for use; refuse; rubbish. The off als of other profession. --South.
offal n : viscera and trimmings of a butchered animal often considered inedible by humans