A humanitarian undertaking to help someone embarrassingly out of touch with current culture get hip. Or the act of gaining knowledge in the quest to make yourself hip to current culture.
In order to gain greater insight into current culture, you should hipitize yourself through watching the Twilight movies and U-Tube, listening to pop top 20 hits on satellite radio, investing in the top selling video games, subscribing to a paparazzi-whore magazine or watching E-news, and learning how to Tweet and link it to your fb.
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.