n. That which falls off, as a chip or chips in dressing wood or stone; that which is suffered to fall off as of little value or use.n. Especially Waste meat; the parts of a butchered animal which are rejected as unfit for use.n. Refuse of any kind; rubbish.n. In the fisheries: Small fish of various kinds taken in seines among larger or more valuable kinds, and thrown away or used for manure, etc.n. Low-priced and inferior fish: distinguished from prime. Fish caught with the trawl average one fourth prime and three fourths offal.Waste; refuse: as, offal wood.