ベンチを温あたためる

expression, ichidan verb

ride the bench; warm the bench

Sports idiom for a substitute player who stays on the bench without getting into the game. Often used in baseball contexts.

• 彼かれはまだ一いち度ども試し合あいに出でていない。ずっとベンチを温あたためている。

  He hasn't played in a single game yet. He's been riding the bench the whole time.