e-tough
A guy who thinks he’s a tough guy online, but in real life he's just a guy who gets kicked out of chat rooms every time he says something dumb.
@chatroomking: I’m so tough I can beat anyone, even the FBI!
In chat: I’ll come to your house and beat you up if you don’t respect me.
DM: I have a magical sword and a friend in the FBI who will get you.