The act of shouting uncontrollable profanity in one's sleep. Often experienced during Stage IV sleep, the individual experiences bouts of unexplained, violent, and angry outbursts.
"I was late for work this morning because my girlfriend had a violent episode of Snourette's last night. I was awoken to the scream, "Fuck, ass cunt-sucking whore." She must have been dreaming of Joan Rivers again.