boom box vs telephone

boom box

noun
  • A powerful portable audio system for listening collectively to recorded or broadcast sound. 

telephone

noun
  • A telecommunication device (originally mechanical, and now electronic) used for two-way talking with another person (now often shortened to phone). 

  • The game of Chinese whispers. 

  • Chinese whispers; a situation in which an initial message has been distorted and misunderstood by being passed from person to person. 

verb
  • To convey (a message) via telephone. 

  • To (attempt to) contact someone using a telephone. 

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