While Jordan Belfort was in prison for securities fraud, he began writing the book that would become Martin Scorsese's Oscar-nominated movie. This story first appeared in the March 7 issue of The Hollywood Reporter magazine.
Freebase(0.00 / 0 votes)Rate this definition: In baseball, the bullpen is the area where relief pitchers warm-up before entering a game. Depending on the ballpark, it may be situated in foul territory along the baselines or just beyond the outfield fence.
What is Bullpen? In baseball, the bullpen is the area that is designated for the relief pitchers to warm up before entering the game. The term bullpen can also be used to refer to the group of relief pitchers on the team. Sporting Charts explains Bullpen.