Medical disorder resulting in ill-conceived, random, rant-like messages being sent on blackberry or similar pda's. Normal delays caused by lack of proximity to Internet access that hinder senders impulsive natures have been removed with the advent of immediate access to the Internet via Blackberry. Hence, suffers of blackberry tourettes do not think of the consequences of messages before pushing SEND.
"WTF - I just got this message from Fred that makes no fucking sense. He is going to piss off a boat load of people with this. WHAT was he thinking??"
"Dude, it's just Blackberry Tourettes"