fun and games vs high jinks

fun and games

noun
  • Recreation; nothing serious; easy, enjoyable activities. 

high jinks

noun
  • Boisterous activity or behaviour; lively fun. 

  • An old Scottish parlour game in which people were chosen, usually by throwing dice, to perform some humorous act or drink a large amount of an alcoholic beverage, with a forfeit if they were unable to do so. 

  • Tricky or waggish behaviour; mischief. 

How often have the words fun and games and high jinks occurred in a corpus of books? (source: Google Ngram Viewer )