はつかねずみじゃない【二十日鼠じゃない】
hatsukanezumijanai
1. Not a twenty-day mouse.; Not a mouse that lasts twenty days.
Noun
#2197733
1. Not a twenty-day mouse.; Not a mouse that lasts twenty days.
1. not
1. departure; departing from ...
2. sent from ...; (a letter, etc.) dated ...
+ 3 additional meanings1. twenty; 20
1. then; well
1. first; new
1. within ...; inside ...