break-off vs coffee break

break-off

noun
  • A break, discontinuance, or interruption 

  • That which breaks off, or is broken off 

  • The first shot in a game of snooker or other cue-game 

verb
  • To play the first shot in a game of snooker 

coffee break

noun
  • A rest period during the business day (usually of about 10 or 15 minutes). So named because it is an opportunity to get coffee. 

How often have the words break-off and coffee break occurred in a corpus of books? (source: Google Ngram Viewer )