bowser vs pisspot

bowser

noun
  • A buffoon or imbecile. 

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

  • 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. 

pisspot

noun
  • An unpleasant or disgusting place or thing. 

  • A very unpleasant person, particularly a mean, nasty, or contemptible one. 

  • A large quantity. 

  • A consumer of large quantities of alcohol; a drunkard. 

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