A scientific term used to describe an advanced stage of Chlamydia, in which the genitals are covered with blistery and often puss filled pustules that pop like thunder. Often resembling the face of a pizza delivery boy.
I knew that girl was slutty, but I didn't realize how slutty until I heard her thunderclaps from across the room!
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.