鬼おにに金かな棒ぼう

expression

making the strong even stronger; adding power to power

Idiomatic expression used when someone already strong or capable gains an additional advantage, making them nearly unstoppable. Literally 'giving an iron club to an ogre'.

• 彼かれはもともと足あしが速はやいのに、新あたらしいシューズを履はいたら鬼おにに金かな棒ぼうだ。

  He was already fast, and with the new shoes he's unstoppable.

• あのチームにエースが復ふっ帰きしたら、まさに鬼おにに金かな棒ぼうだね。

  If the ace returns to that team, they'll be truly invincible.