bench jockey
slang In baseball, a coach or player who berates or derides the umpire or opposing players from his team's dugout bench. In this usage, "jockey," the rider of a race horse, refers to "riding someone," which commonly means to harass or ridicule a person. Primarily heard in US. I wish you wouldn't be such a bench jockey at our games! If Coach keeps being such a bench jockey to the umpire, he's gonna get thrown out of the game. Why is that guy acting like a total bench jockey? Hey, buddy, quit yelling at my players!
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