- a place where relief pitchers warm up during a game.
- the relief pitchers on a team.
- a large cell or room, usually next to the courtroom, where prisoners are temporarily held.
- a large room in an office occupied by many employees.
- bull mastiff,
- bull moose,
- bull neck,
- bull nose,
- bull of the woods,
- bull riding,
- bull rope,
- bull run,
- bull run, battle of,
- bull session
Origin of bull pen
Examples from the Web for bullpen
To Palmer, the coincidence of his bullpen exile and his return to form was galling.
You know, he does the same thing in Dallas Buyers Club in the bullpen!True Detective Director Cary Fukunaga’s Journey from Pro Snowboarder to Hollywood’s Most Wanted|Marlow Stern|February 26, 2014|DAILY BEAST
Eventually it got to be too much and NBC had to go to the bullpen.
Senators manager Bucky Harris signaled to the bullpen to send in a right-hander named Paul Hopkins.
When Strauss-Kahn crossed that bridge, he was delivered to Intake—or, as we inmates call it, “the bullpen.”Dominique Strauss-Kahn's Life in Jail at Rikers Island|Joe Halderman|May 17, 2011|DAILY BEAST
When in the "bullpen" Schrank's fellow prisoners shrank away from him.
also bull-pen, 1915, in the baseball sense, from bull (n.1) + pen (n.2); perhaps from earlier slang meaning "temporary holding cell for prisoners" (1809). Bullpen also was the name of a baseball-like game played in U.S. late 19c.