bull pen

or bull·pen



  1. a place where relief pitchers warm up during a game.
  2. the relief pitchers on a team.
  1. a large cell or room, usually next to the courtroom, where prisoners are temporarily held.
  2. a large room in an office occupied by many employees.
any temporary or crowded quarters, as sleeping quarters in a lumber camp.
a pen for a bull or bulls.

Nearby words

  1. bull mastiff,
  2. bull moose,
  3. bull neck,
  4. bull nose,
  5. bull of the woods,
  6. bull riding,
  7. bull rope,
  8. bull run,
  9. bull run, battle of,
  10. bull session

Origin of bull pen

1800–10, Americanism for def 4; 1920–25 for def 1

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

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