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 Feces (also known as faeces American and British English spelling differences#ae and oe, or fæces; : faex) are the solid or semi-solid remains of food that was not digested in the small intestine, and has been broken down by bacteria in the ...

", and (), meaning "action". Copropraxia is a rare characteristic of

Tourette syndrome Tourette syndrome (TS), or simply Tourette's, is a common neurodevelopmental disorder that begins in childhood or adolescence. It is characterized by multiple movement (motor) tics and at least one vocal (phonic) tic. Common tics are blinkin ...

. Related terms are

coprolalia Coprolalia ( ) is involuntary swearing or the involuntary utterance of obscene words or socially inappropriate and derogatory remarks. The word comes from the Ancient Greek language, Greek (), meaning "dung, feces", and () "speech", from () "to ...

, referring to involuntary usage of profane words,Coprolalia.
Dictionary.com, Accessed 21 November 2006. and

coprographia Coprographia is involuntarily making vulgar writings or drawings. The word comes from the Greek (), meaning "feces", and (), meaning "writing". Related terms are coprolalia Coprolalia ( ) is involuntary swearing or the involuntary utterance ...

, making vulgar writings or drawings.

References

Symptoms and signs: Nervous system Tourette syndrome {{symptom-stub