e-baller
A sad, creepy person who thinks they're tough because they type mean stuff online, but in real life they're just a f***ing mess.
Post: 'I hate everyone! They're all f***ing losers!' (written by someone who cried in the bathroom at work)
Comment: 'You're the worst, and I'm going to make sure everyone knows it!' (said by someone who once got laughed at in a group chat)
DM: 'I'm not afraid of anyone! I'm going to beat you up in real life!' (sent by someone who once got scared by a loud noise)