臥が薪しん嘗しょう胆たん

noun, noun or participle which takes 'suru', intransitive verb

going through thick and thin to attain one's objective; enduring unspeakable hardships for the sake of vengeance

A yojijukugo derived from a Chinese historical anecdote. Often used to describe extreme perseverance and self-sacrifice in pursuit of a goal, especially revenge. Can be used as a noun or with する to mean 'to endure hardships for a goal'.

• 彼かれは臥が薪しん嘗しょう胆たんの末すえ、ついに目もく標ひょうを達たっ成せいした。

  After enduring extreme hardships, he finally achieved his goal.