have on vs laugh at

have on

verb
  • To trick or deceive deliberately; to play a prank on. 

  • To have turned on (an electronic device) 

  • To be wearing. 

laugh at

verb
  • To scorn or tease; to evince contempt or pity for someone, usually contrasted with laugh with. 

  • Used other than figuratively or idiomatically: see laugh, at. 

How often have the words have on and laugh at occurred in a corpus of books? (source: Google Ngram Viewer )