香煎 こうせん roasted barley flour n parched flour with various ingredients added and drunk in hot water n Advanced ➥
爪の垢を煎じて飲む つめのあかをせんじてのむ to take a lesson from (a wise person); to follow in the footsteps of; to boil the dirt under (somebody's) fingernails and drink it (so that you may become like them) exp v5m id Advanced ➥