머리를 싸매고 공부하다 · 머리를 싸매고 고민했어요
to study or think extremely hard, to rack one's brains (lit. to wrap up one's head)
Example
동생은 시험 때문에 머리를 싸매고 공부하고 있어요.
My brother is studying his head off for the exam.
Word parts
Literally 'to bind up one's head' with a cloth, as if it aches from so much thinking.
Good to know
Almost always 머리를 싸매고 + 공부하다/고민하다; neutral, used for studying or solving a hard problem.
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