骨ほねが折おれる

expression, ichidan verb

be hard (to do); be difficult; require much effort; be laborious

Idiomatic expression literally meaning 'bones break', used to describe a task that is physically or mentally demanding, troublesome, or requires great effort. Often used with a verb in the て-form or a nominalized clause.

• この問もん題だいを解とくのは骨ほねが折おれる。

  Solving this problem is hard work.

• 引ひっ越こしの準じゅん備びは本ほん当とうに骨ほねが折おれた。

  Preparing for the move was really laborious.