白河夜船
Expression- 1being fast asleep (and totally unaware of what is going on around one) Translated by Jiyomi
- 2know-it-all manner
Other writings and readings
白川夜船白河夜舟白川夜舟しらかわよぶね
expressions (phrases, clauses, etc.)
JMdict entry 1475040. Source and licence.