j00hai A person you talk to in stupid hacker code, just to make your greetings less boring and more annoying. Expand Hai j00, 1337 1s 4 1337 0f 4 1337Hai j00, 1m 4 1337 0f 4 1337Hai j00, 1m 4 1337 0f 4 1337 0n 4 1337 + Examples