武ぶ士しの商しょう法ほう

expression, noun

amateurish and haughty way of doing business

Refers to a business approach that is both unskilled and arrogant, historically associated with ex-samurai who entered commerce during the Meiji period without proper experience or humility.

• あの店みせの対たい応おうはまさに武ぶ士しの商しょう法ほうだ。

  That shop's attitude is exactly the amateurish and haughty way of doing business.