爪の垢を煎じて飲む
つめのあかをせんじてのむ
Also written つめの垢を煎じて飲む, 爪のあかを煎じて飲む
Meanings
- Expression, Godan verb to take a lesson from (someone serving as an example); to learn from someone's example (literally: to boil the dirt under (someone's) fingernails and drink it)