An uncontrollable use of obscene language

• Often accompanied by mental disorders

WordNet Word definitions in WordNet
n. an uncontrollable use of obscene language; often accompanied by mental disorders

Wikipedia Word definitions in Wikipedia
Coprolalia is involuntary swearing or the involuntary utterance of obscene words or socially inappropriate and derogatory remarks. Coprolalia comes from the Greek κόπρος ( kopros ) meaning " feces " and λαλιά ( lalia ) from lalein , "to talk". The term ...

Wiktionary Word definitions in Wiktionary
n. The uncontrolled use of abusive, obscene or scatological language; especially such behaviour associated with Tourette syndrome.

Douglas Harper's Etymology Dictionary Word definitions in Douglas Harper's Etymology Dictionary
"obsessive use of obscene language, either through mental illness or perversion," 1886, from French coprolalie , coined 1885 by de la Tourette, from copro- "dung, filth" + Greek lalia "talk, prattle, a speaking," from lalein "to speak, prattle," of echoic ...