O.P.D.
Online Personality Disorder is when a loser tries to act cool in chatrooms but just ends up being a loudmouth nobody. They're the same annoying a-hole in real life and online.
@joe_smack: 'I’m so cool, I just texted 50 people at once!' (he had to send the same message 3 times)
Lisa: 'I’m the best at chess!' (she lost to a 6-year-old)
Kevin: 'I’m a legend!' (he got banned from the game)