knacker: Meaning and Definition of

knack•er

1. a person who buys animal carcasses or slaughters useless livestock for a knackery or rendering works.
2. a person who buys and dismembers old houses, ships, etc., to salvage usable parts, selling the rest as scrap.
3. an old, sick, or useless farm animal, esp. a horse.
4. a harness maker; a saddler.