1.
working oneself to the bone; giving one's all
To exert oneself to the utmost, sparing no effort. Literally means 'grinding one's bones and crushing one's body.'
YOJIJUKUGO (四字熟語): This is a four-character compound idiom.
Writing
- 粉 - powder, to grind
- 骨 - bone
- 砕 - to crush, to break
- 身 - body
Common patterns
Similar words
- 全身全霊 (with all one's heart and soul)
- 一生懸命 (with all one's might)
- 死に物狂い (desperately, like one's life depends on it)
Register: Formal, often used in writing or speeches.