knacker
nounA person who buys worn-out or old livestock and slaughters them to sell the meat or hides.
A person who buys discarded structures and dismantles them to sell the materials.
A man who dismantles and sells the materials of old houses, ships, etc.
That which knacks or knocks; in the plural, two pieces of wood or bone used as a plaything by boys, who strike them together by moving the hand; castanets; bones.
A maker of knacks, toys, or small work.
