no-call-no-show vs no-show

no-call-no-show

noun
  • An unexplained absence from work, usually grounds for discipline, where the employee does not alert the employer of their absence ahead of time nor during the scheduled shift. 

no-show

noun
  • An absence; failure to show up or to make a scheduled appearance, especially at a hotel or a place of employment. 

  • A person or group that does not show up. 

verb
  • To fail to show up for something. 

How often have the words no-call-no-show and no-show occurred in a corpus of books? (source: Google Ngram Viewer )