carburetor vs muffler

carburetor

noun
  • A device in an internal combustion engine where fuel is vaporized and mixed with air prior to ignition. 

  • A water pipe or bong; a device or contrivance for mixing air with burning cannabis or cocaine. 

muffler

noun
  • Part of the exhaust pipe of a car that dampens the noise the engine produces. 

  • A silencer or suppressor fitted to a gun. 

  • A type of scarf. 

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