A game, where the goal is to avoid hearing the son "Last Christmas" by Wham for as long as possible. The game typically starts 1st of December and lasts until Christmas Eve. The game is trust-based and you only lose if you hear the original.
"Damnit, thanks to the music at Wal-MartI lost whamageddon and must reside in whamhalla until xmas"
n. The oft-predicted final battle over the destiny of Earth's soul between the believers in global warming and the followers of Satan (or between the Global Warming Conspirators and the Holders of the True Knowledge).