A person who is realnasty. So nasty they do anything to anyone. Often sexual in nature. You don't wanna mess wiv these badboys. still they are not to be confused wiv the nastyboys of www.nastyboys.com who are actually rather gay and pornographic.
Chris: Why did you hit that man on the head wiv your sledge hammer and then piss all over his face?
David: Beacuse im a NASTYBOY!!
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.