from movie 'Battle Without Honor or Humanity' ('Jingi naki tatakai')
"The imperative form" is one of the conjugations of Japanese verbs. However, we are usually unwilling to use it in everyday life because it sometimes sounds quite harsh. It is mainly used when a male teacher or a father tells children off, or a male boss barks commands to his subordinates, etc. So people who learn Japanese are sometimes reluctant to memorize the conjugation they will rarely use. But the other day, a student happily informed me that he had heard many imperative forms in a Japanese film he had watched. At first I wondered in which movie men got so angry and spoke sharply throughout the story. When I asked, he answered they had used the forms in a Japanese traditional gangster movie he had watched. No wonder!