bowser vs saloon

bowser

noun
  • A road vehicle (often a trailer) for the transport of liquid fuel, particularly aviation fuel at an airfield. 

  • A buffoon or imbecile. 

  • A fuel metering/delivery pump at a filling station. 

  • A mobile water tank deployed to distribute fresh water in emergency situations where the normal system of piped distribution has broken down or is insufficient. 

saloon

noun
  • the part of a rail carriage or multiple unit containing seating for passengers. 

  • The cabin area of a boat or yacht devoted to seated relaxation, often combined with dining table. 

  • A tavern, especially in an American Old West setting. 

  • A barbershop (store offering haircuts). 

  • The most common body style for modern cars, with a boot or trunk. 

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