chimney vs light bulb

chimney

noun
  • The glass flue surrounding the flame of an oil lamp. 

  • A narrow cleft in a rock face; a narrow vertical cave passage. 

  • A black eye; a shiner. 

  • The smokestack of a steam locomotive. 

  • A vagina. 

  • A vertical tube or hollow column used to emit environmentally polluting gaseous and solid matter (including but not limited to by-products of burning carbon- or hydrocarbon-based fuels); a flue. 

verb
  • To negotiate a chimney (narrow vertical cave passage) by pushing against the sides with back, feet, hands, etc. 

light bulb

noun
  • An evacuated glass bulb containing a metal filament which is heated by electrical resistance to produce light. 

  • An article that resembles such a bulb and converts electricity to light by any process. 

  • Used in reference to the sudden arrival of a realization, an inspiration, an idea, or the like. 

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