|This article may be expanded with text translated from the corresponding article in the Japanese Wikipedia. (January 2012)|
Kancho (カンチョー kanchō ) commonly carried out as a prank. It is performed by clasping the hands together in the shape of an imaginary gun and attempting to insert the extended index fingers sharply into an unsuspecting victim's anus, often while exclaiming "Kan-CHO!".
Although similar to a wedgie, a "goosing", or "checking oil", and "Gaddafi" in the United States, Kancho involves much more direct and intimate physical contact.
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 Japan 
This prank is pervasive in Japan. Examples include a TV gameshow where a celebrity routinely kanchōs random people.
In February 2006, Nanmon Kaiketsu ("Solving Difficult Problems"), an NHK TV show about social problems, speculated that the long-term leniency toward Kancho is an indirect cause of the rampant train gropings across Japan.
In other countries 
||This section needs additional citations for verification. (July 2012)|
- In Taiwan, the practice is called "童子拜觀音" pinyin: Tóngzǐ bài guānyīn.
- In South Korea a similar prank is called "똥침" (Ddong Chim). 
- In the Philippines, it is widely known as the "raygun", popularized by the anime Yu-Yu Hakusho.
- In Canada, this act is known as a "bingle".
- In France, a similar act involving only one finger and performed with clothing in a nonchalant manner is known as "olive".
- In Malta, it is widely known as the "Briefcasing".
- In Republic Of Ireland, it is known as a "Hail Mary" it is preformed very similarly although using all four fingers rather than just the index finger .
See also 
- Boong-Ga Boong-Ga, a video game for the Korean and Japanese market that allows the player to engage in simulated Kanchoing.
- School prank
- "Lisa's Japanese Below-the-Belt Prank Tutorial | Table Of Malcontents". Wired. 2006-12-01. Retrieved 2010-01-06.
- (Japanese) KANCHO across the world in Japan, Korea KANCHO What? Trendy Net
- Makihara, Kumiko (2009-07-24). "My Un-American Son". The New York Times. Retrieved 2010-05-07.
- "Dong Chim".