SEAT vs pink slip

SEAT

noun
  • An automobile from Sociedad Española de Automóviles de Turismo 

  • Single engine air tanker. 

name
  • Sociedad Española de Automóviles de Turismo, a Spanish automobile manufacturer. 

pink slip

noun
  • Notice of termination of employment. 

  • An automobile roadworthiness inspection certificate. 

  • The title document for an automobile. 

verb
  • To terminate the employment of. 

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