inoperative vs tits up

inoperative

adj
  • Not working or functioning; either idle or broken. 

  • No longer legally binding. 

tits up

adj
  • Broken; failed; inoperable. 

  • Used other than figuratively or idiomatically: see tits, up. 

  • Dead. 

How often have the words inoperative and tits up occurred in a corpus of books? (source: Google Ngram Viewer )