Twurder
(v) To tweet that someone is dead or has been killed when in fact they are alive. or (n) Rogue Tweet that states someone has been killed or is dead when they are not.
If you read on Twitter that someone is dead, don't believe it until you see the body; it might just be Twurder and they're actually still alive. Just ask Gabby Giffords - she was twurdered.