What 1500s tradename for a harnesses maker, later a slaughterer of old horses, and dialectal term for castanets, became slang for testes and verb terms for various states of uselessness?
Knackerman Knacker Knackers yard Knackered Knackers Knackery Knacker's yard
knackers yard knacker s yard knackerman knackers knacker knackered knackery
knacker
WikipediaEntity
Knacker