medley vs pocket billiards

medley

noun
  • A competitive swimming event that combines the four strokes of butterfly, backstroke, breaststroke, and freestyle. 

  • A collection or mixture of miscellaneous things. 

  • A cloth of mixed colours. 

  • A collection of related songs played or mixed together as a single piece. 

verb
  • To combine, to form a medley. 

pocket billiards

noun
  • Any of a family of billiards games played on a specific class of billiards table, having six receptacles called pockets along the rails, in which balls are deposited as the main goal of play. 

  • Synonym of pocket pool 

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