boozer vs maltworm

boozer

noun
  • One who drinks habitually; a drunkard. 

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

  • A public house, pub. 

maltworm

noun
  • A tippler; a drinker of alcohol. 

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