体からだを粉こにする

expression, suru verb (irregular)

work oneself to the bone; give one's all; make the utmost effort

Idiomatic expression literally meaning 'to grind one's body into dust'. Used to describe working extremely hard, often to the point of exhaustion. Similar to 身を粉にする (みをこにする), which is more common.

See also: 身を粉にする (みをこにする)

• 彼かれは家か族ぞくのために体からだを粉こにして働はたらいた。

  He worked himself to the bone for his family.

• 体からだを粉こにする覚かく悟ごでこのプロジェクトに取とり組くむ。

  I will tackle this project with the determination to give it my all.