boiler vs slop-bowl

boiler

noun
  • A kitchen vessel for steaming, boiling or heating food. 

  • An old woman. 

  • A device consisting of a heat source and a tank for storing hot water, typically for space heating, domestic hot water etc., disregarding the source of heat. 

  • A sunken reef, especially a coral reef, on which the sea breaks heavily. 

  • A person who boils something. 

  • A steam boiler. 

  • An apparatus for heating circulating water or other heat transferring liquid. 

  • Boilerplate. 

  • A tough old chicken only suitable for cooking by boiling. 

slop-bowl

noun
  • Part of a traditional tea set, used to empty the cold tea and dregs in tea cups before refilling with hot tea. Usually pottery or silver. 

How often have the words boiler and slop-bowl occurred in a corpus of books? (source: Google Ngram Viewer )