A celebratory event held at a restaurant or bar where everyone invited gathers and must buy their own food or drink... as opposed to a "party" where there's a host providing such fare.
Hey, Howie's turning 30 this Saturday.
Cool! Is he having a party?
Nope, he's broke. We're just hitting a bar.
Oh great, another gatherbration.
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.