decruit vs pink slip

decruit

verb
  • To reduce the workforce; to make (an employee) redundant. 

pink slip

verb
  • To terminate the employment of. 

noun
  • Notice of termination of employment. 

  • An automobile roadworthiness inspection certificate. 

  • The title document for an automobile. 

How often have the words decruit and pink slip occurred in a corpus of books? (source: Google Ngram Viewer )