bench jockey

• n. 坐在候补席；并大声提出建议的板凳球员；嘲笑对方运动员、裁判员等的替补队员

bench jockey的用法和样例：

例句

用作名词 (n.)

1. Luther Head could be a key guy off the bench because he's become such a good shooter, he's improved his handle and he plays both ends while being able to defend the bigger guards.
   头头作为一个优秀的射手能成为板凳球员里的关键先生，他提高了自己的持球能力，并要在球场的两端能克制住比他高大的后卫们。