black box vs jobber

black box

noun
  • A type of theater characterized by a lack of decoration or complex mechanisms. 

  • A flight recorder; the brightly colored cockpit voice recorders and flight data recorders in an aircraft designed to aid in determining the cause of an accident. 

  • A device used in phreaking that prevents the calling party from being billed for the call placed. 

  • A theoretical construct or device with known input and output characteristics but unknown method of operation. 

  • Any similar device on motor vehicles, such as rail event recorders and ship trip recorders. 

verb
  • To focus on the inputs and outputs without worrying about the internal complexity. 

jobber

noun
  • A performer whose primary role is to lose to established talent. 

  • A type of intermediary in the apparel industry, as well as others, who buys excess merchandise from brand owners and manufacturers, and sells to retailers at prices that are 20-70% below wholesale. 

  • An intermediary who buys and sells merchandise. 

  • A market maker on the stock exchange. 

  • A thing (often used in a vague way to refer to something the name of which one cannot recall). 

  • An actor temporarily employed for a specific role, often in a touring company. 

How often have the words black box and jobber occurred in a corpus of books? (source: Google Ngram Viewer )