隠かくし球だま

noun

hidden ball trick

Baseball term: a trick play where a fielder hides the ball and tags a runner who thinks the ball is elsewhere.

• 隠かくし球だまは野や球きゅうのトリックプレーの一ひとつだ。

  The hidden ball trick is one of baseball's trick plays.

noun

ace up one's sleeve; secret weapon

Figurative use: a hidden advantage, resource, or strategy kept in reserve for a decisive moment.

• 彼かれは交こう渉しょうで隠かくし球だまを使つかうのがうまい。

  He is good at using a secret weapon in negotiations.

• あのチームにはまだ隠かくし球だまがあるに違ちがいない。

  That team surely still has an ace up their sleeve.