The condition whereby it is difficult for one to refrain from saying something entirely inappropriate, offensive or irrelevant when communicating via the internet
Sufferers do not tend to suffer from regular Tourette's syndrome at all. Intourettes syndrome is NOT an inherited neuropsychiatric disorder; a common misconception. In fact it is developed as a result of over-exposure to intense levels of boredom.
Mild cases can occur, where the user types the inappropriate comment but manages to refrain from actually sending it, recognising the social unacceptability of their comment.
Intourettes tends to be more common than Tourette's syndrome because many people follow the viewpoint that anything is acceptable on the internet.
Uninteresting internet user: ahh my mum is pissing me off !!
Intourettes sufferer: Try bending her over the kitchen table and raping her up the shitter with a baguette until she learns her fucking place.
Uninteresting internet user: argh physics exam tomorrow, can't be arsed!
Intourettes sufferer: Kill it. Kill it with a spade.