chimney vs pipeline

chimney

noun
  • 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. 

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

  • A black eye; a shiner. 

  • The smokestack of a steam locomotive. 

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

  • A vagina. 

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

pipeline

noun
  • A conduit made of pipes used to convey water, gas or petroleum etc. 

  • A channel (either physical or logical) by which information is transmitted sequentially (that is, the first information in is the first information out). 

  • A system or process through which something is conducted. 

  • The inside of a wave that a surfer is riding, when the wave has started closing over it. 

verb
  • To design (a microchip etc.) so that processing takes place in efficient stages, the output of each stage being fed as input to the next. 

  • To connect a tube from ones mouth to ones anus (or the anus of another), in order to force someone to eat feces. 

  • To convey something by a system of pipes 

  • To lay a system of pipes through something 

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