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"
The word stupidiness is a variation of the word stupidity. It was first used on accident by a person who cannot speak English properly (obv.) Use of this term has become a way to make fun of the person who first uttered it.
A euphemism for douche bag, perfect for the work setting. The origin of this meaning most certainly came from a computer science setting, where the term "database" is thrown around so much it was eventually used as a derogatory term.
Boss: "So, what do you think of our new general manager?"
Me: "That guy's a real database."
Boss: "Yes, I suppose he does store a lot of information. (chuckles)"