強きょう振しん

noun, noun or participle which takes 'suru'

swinging hard; powerful swing

Primarily used in baseball contexts for a full, powerful swing. Can also be used figuratively for taking a bold action.

• 彼かれは初しょ球きゅうから強きょう振しんした。

  He swung hard from the first pitch.

• 強きょう振しんが空から振ぶりに終おわった。

  The powerful swing ended up as a miss.