獅し子し奮ふん迅じんの勢いきおい

expression, noun

irresistible force; overwhelming momentum

A set phrase likening someone's energy or momentum to a lion charging fiercely. Often used with verbs like 進む, 攻める, or 働く to describe unstoppable action.

• 彼かれは獅し子し奮ふん迅じんの勢いきおいで仕し事ごとを片かた付づけた。

  He finished the work with irresistible force.

• 新しん入にゅう社しゃ員いんが獅し子し奮ふん迅じんの勢いきおいで営えい業ぎょう先さきを回まわっている。

  The new employee is visiting clients with overwhelming momentum.