구구절절이 · 구구절절을
every single word and line; at great length, in detail
Example
그의 편지에는 미안한 마음이 구구절절 담겨 있었어요.
Every line of his letter was full of how sorry he was.
Word parts
구 phrase+구 phrase+절 passage+절 passage
Literally 'every phrase, every passage.'
Good to know
Also adverbial and can sound negative—long-winded: 구구절절 변명하다 'to make lengthy excuses.'
Related words