e-tough guy
An e-tough guy is a man who lives online, thinking he's tough because he's got the best weapons and the biggest muscles in the game. In real life, he's just a guy who can’t even stand up to his own dad. He yells at people online and says he can beat them up, even though he can’t beat up his own dog.
In chat: You’re just a f***ing nobody who needs a snack and a nap. I’m gonna beat you up and take your gold.
DM: I’m gonna come to your house and beat you up. I’ve got friends in the CIA, you f***ing loser.
In-game chat: You’re just a little f***ing shrimp who thinks he’s a giant.