Copropraxia is a tic consisting of involuntarily performing obscene or forbidden gestures, or inappropriate touching.Shimberg, Elaine Fantle (1995). Living with Tourette Syndrome. New York: Simon & Schuster. p. 31. The word comes from the Greek (), meaning "feces", and (), meaning "action". Copropraxia is a rare characteristic of Tourette syndrome. Related terms are coprolalia, referring to involuntary usage of profane words,Coprolalia. Dictionary.com, Accessed 21 November 2006. and coprographia, making vulgar writings or drawings.
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