Coprographia is involuntarily making vulgar writings or drawings. Coprographia comes from the Greek (kópros), meaning "feces", and (graphḗ), meaning "writing". Related terms are coprolalia, the involuntary usage of obscene and/or profane words, and copropraxia, the involuntary performance of obscene gestures. References Symptoms and signs: Nervous system Tourette syndrome