The Game

"The Game" is a game where whoever thinks about The Game loses. Though there's no shame in losing! So try it out! Also, there are certain "Grace Periods", and during them you can't lose, instead, if you think of The Game, you get another 15-minute grace period. You can get a first 15-minute grace period by losing. Also, there are special grace periods, where when certain criteria are met, you get another special grace period. So try THAT out!

Origin
Two people were late for their train, and they sat down on a nearby bench and said whoever thinks about them not getting on the train loses. This later became a big, popular, hated game known as "The Game".

Grace Periods
Diddy Kong grace period

You get a Diddy Kong Grace Period when you think about The Game because of: You have to say either "Dah! I got a Diddy Kong grace period of the game.", or "Diddy!", depending on how your throat is feeling. Also, to refresh a DKGP (Diddy Kong grace period), say "Riddy!". You can NOT get a Diddy Kong grace period while you have a regular grace period.
 * Toontown Rewritten (Also known as "Looney Tunes!")
 * MarioKart, when playing as Diddy Kong
 * This wiki page (and others that mention The Game)
 * Lucid Dreaming
 * And finally, the Duke of Weselton and his GAME OVER game.

Grace Period
As said earlier, you get a grace period by losing. They last 15-minutes and during that time, you can refresh it.