boozer vs gas station

boozer

noun
  • A vehicle equipped with tanks for supplying water to remote locations. 

  • One who drinks habitually; a drunkard. 

  • A public house, pub. 

gas station

noun
  • filling station / petrol station; an establishment which sells gasoline (petrol) and diesel 

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