1. knacker - Noun
2. knacker - Verb
One of two or more pieces of bone or wood held loosely between the fingers, and struck together by moving the hand; -- called also clapper.
a harness maker.
One who slaughters worn-out horses and sells their flesh for dog's meat.
Source: Webster's dictionarySquealer quickly assures the animals that the van had been purchased from the knacker by an animal hospital and the previous owner's signboard had not been repainted. Source: Internet
He has been described as "faithful and strong"; citation he believes any problem can be solved if he works harder. citation However, when Boxer is injured, Napoleon sells him to a local knacker to buy himself whisky. Source: Internet