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Kanchō (カンチョー?) is a Japanese prank performed by clasping the hands together in the shape of an imaginary gun and attempting to poke an unsuspecting victim's anus, often while exclaiming "Kan-CHO!".
The word is a slang adoption of the Japanese word for enema (浣腸 kanchō?). In accordance with widespread practice, the word is generally written in katakana when used in its slang sense, and in kanji when used of enemas in the medical sense.
In the manga series Naruto, there is a taijustu technique called Sennen Goroshi (千年殺し?) (literally, "One Thousand Years of Death") which modelled after Kancho. It was originally used by Kakashi Hatake on Naruto Uzumaki during Team 7's bell test. During the Invasion of Konoha arc, while fighting Gaara in his half-Shukaku form, Naruto would discover that the point behind the technique was to target the opponent's blind spot and when one substitutes their fingers for a kunai with an explosive tag, it can be a lethal technique.
- Boong-Ga Boong-Ga, a video game for the Korean and Japanese market that allows the player to engage in simulated Kancho-ing.
- List of school pranks
- School bullying
- Ashcraft, Brian & Jean Snow. Arcade Mania: The Turbo-charged World of Japan's Game Centers (2008) (noting that the prank is popular among schoolchildren)
- Makihara, Kumiko (2009-07-24). "My Un-American Son". The New York Times. Retrieved 2010-05-07.
- Garrido, Ben. "Stranger in a strange land". Newsreview.com. Retrieved 12 March 2014.
- 「カンチョー少年の像」の躍動感がハンパない. RocketNews24 (in Japanese). Retrieved 12 March 2014.
- Tomochika (31 May 2008). ""Kanchō!" wa ikite ita". Asahi Shimbun.
- "Kiyohara no Yakyū Jinsei no Ayumi". Sukkiri!. Nittele Entertainment. Retrieved 12 March 2014.