Shortened version of "Google Talk," which is an instant messaging (IM) software by Google.
Man: Do you like Gtalk?
Woman: I don't mind talking to gay men.
Man: No, I mean do you use Gtalk to stay in touch with your friends?
Woman: Oh, how embarrassing. No, I don't.
Man: Alrighty...
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.