battery acid vs java

battery acid

noun
  • Coffee. 

  • Acid used as electrolyte in a battery, usually sulphuric acid. 

java

noun
  • Coffee in general. 

  • A dance popular in France in the early 20th century. 

  • A blend of coffee imported from the island of Java. 

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