exhaust vs knacker

exhaust

verb
  • to tire out; to wear out; to cause to be without any energy 

  • To empty by drawing or letting out the contents 

  • To bring out or develop completely 

  • To discuss thoroughly or completely 

  • To subject to the action of various solvents in order to remove all soluble substances or extractives 

  • To draw or let out wholly; to drain off completely (:liquid) 

  • To use up; to deplete, drain or expend wholly, or until the supply comes to an end 

noun
  • An exhaust pipe, especially on a motor vehicle. 

  • A system consisting of the parts of an engine through which burned gases or steam are discharged; see also exhaust system. 

  • The steam let out of a cylinder after it has done its work there. 

  • The dirty air let out of a room through a register or pipe provided for the purpose. 

  • exhaust gas. 

knacker

verb
  • To tire out, exhaust. 

  • To reprimand. 

noun
  • One who makes knickknacks, toys, etc. 

  • A member of the Travelling Community; a Gypsy. 

  • One who slaughters and (especially) renders worn-out livestock (especially horses) and sells their flesh, bones and hides. 

  • A person of lower social class; a chav, skanger or scobe. 

  • One who dismantles old ships, houses, etc. and sells their components. 

  • A harness maker. 

  • One of two or more pieces of bone or wood held loosely between the fingers, and struck together by moving the hand; a clapper. 

  • A testicle. 

  • An old, worn-out horse. 

How often have the words exhaust and knacker occurred in a corpus of books? (source: Google Ngram Viewer )