NichiDict

爪の垢を煎じて飲む

つめのあかをせんじてのむ
つめの垢を煎じて飲む爪のあかを煎じて飲む
[tsumenoakawosenjitenomu]

Meanings

1.ExpressionGodan

to take a lesson from (someone serving as an example); to learn from someone's example; to boil the dirt under (someone's) fingernails and drink it