It is actually a combination of two words and it started in forum thread. It's when something is orgasmically awesome, orsm! It could be used in numerous ways, like a replacement for cool. Popular Internet chat and text messaging slang, since it's so short.
John "wow that was fantastic!"
Doe "yeah it was orsm!"
John "what an orsm day!"
Doe "sure is, let's take our orsm car for drive!"
n. software that is no longer sold or supported by the original publisher / developer, often found as free downloads on the internet because it cannot be obtained elsewhere. Not legal, but often seen as morally acceptable because the company that made it is no longer selling the title, nor releasing it as freeware, therefore abandonware is "keeping the gamealive", so to speak.
Doom II is not abandonware because idstill sells it, while The Incredible Machine is not sold, therefore is abandonware.