Sailor Suit and Machine Gun (セーラー服と機関銃 Sailor-fuku to Kikanju) is a 1981 Japanese film based on a novel by Jiro Akagawa and directed by Shinji Sōmai. The film is perhaps best known in Japan for a scene in which the main character Izumi guns down a room full of Yakuza and cries out "Kaikan!", which loosely translates as an announcement of ecstacy.