“Nukiuchi” idiom comes from the samurai sword technique in which he suddenly draws his sword from the scabbarn and slashes an opponent in the same movement. So, in short it means “surprise, unannounced, without advance notice” and etc. in English.
For example, “nukiuchi xxxxx( something )” is used as a meaning of following English.
surprise visit
pop quiz
conduct an inspection without advance notice
#japanesesword #samurai #craftsman #japaneselanguage #japaneseculture