attrit vs pink slip

attrit

verb
  • To engage in attrition; to quit or drop out. 

  • To be reduced in quantity through attrition. 

  • To lose, or to kill, troops by attrition due to sustained firepower. 

  • To wear down through attrition, especially mechanical attrition. 

noun
  • One who voluntarily or involuntarily leaves a company; a termed employee. 

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 attrit and pink slip occurred in a corpus of books? (source: Google Ngram Viewer )