The Steve Exit is the infamous practice of quickly signing off AIM or some other chat service before the other party has a chance to reply. Named after the most frequent abuser of messaging etiquette, the Steve Exit is the equivalent of hanging up on someone without letting them say goodbye.
dave4219 (8:47:24 PM): yeah, man, she is a hooker
settersteve (8:47:30 PM): dinner time
settersteve (8:47:34 PM): gotta run
settersteve (8:47:37 PM): have fun
settersteve (8:47:40 PM): late
dave4219 (8:47:51 PM): hey wait are we playing halo or what?
***settersteve is offline or not available***
Dave: "Fucking Steve Exit"