A sleepy panda is a term of endearment for a person who can quickly become very tired as soon as they enter a certain environment. It can also be emphasised by any dark circles under the person’s eyes, which suddenly become visible in certain lighting.
“Aw, you look exhausted, you always become a sleepy panda when we get on the train.”
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.