剛ごう腕わん

noun

strong arm; powerful arm

Literally a physically strong or stout arm; often used in contexts of physical strength or sports.

• 彼かれの剛ごう腕わんから投なげられたボールは速はやかった。

  The ball thrown from his powerful arm was fast.

noun, noun which may take the genitive case particle 'no'

capable person; strong leader; ability to get things done

Figurative use: a person with strong leadership or the ability to push through difficult tasks; often used in business or political contexts.

• 新しん社しゃ長ちょうは剛ごう腕わんで知しられ、改かい革かくを次つぎ々つぎと実じっ行こうした。

  The new president is known for being a strong leader and carried out reforms one after another.

• 彼かれの剛ごう腕わんぶりには誰だれも逆さからえない。

  No one can oppose his forceful way of doing things.