bullpen vs cooler

bullpen

noun
  • A place for someone or something to get ready. 

  • The relief pitchers of a team collectively. 

  • An enclosed area for pitchers to warm up in during a game. 

  • An enclosed area used to hold bulls. 

  • An open seating arrangement where project teams can communicate openly with minimal effort. 

cooler

noun
  • A cold deck. 

  • A bouncer or doorman. 

  • An insulated bin or box used with ice or freezer packs to keep food or beverages cold while picnicking or camping. 

  • Anything which cools. 

  • A device for refrigerating dead bodies in a morgue. 

  • A type of drink made with alcohol, especially wine, mixed with fruit juice. 

  • A prison. 

  • samalamig 

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