An enclosed area used to hold bulls. / (baseball) An enclosed area for pitchers to warm up in during a game. / (baseball) The relief pitchers of a team collectively.

plural of bullpen

(baseball, of the offensive team) To manage easily to hit pitching by the starting and relief pitchers of the opposing team, despite the types of pitches thrown or the skill of the pitchers.

Third-person singular simple present indicative form of rough up the bullpen

present participle of rough up the bullpen

simple past tense and past participle of rough up the bullpen