A phrase that means to smoke marijuana, and is used when you are by parents and/or teachers and don't want them to know what you're talking about. Also used on written messages that you're worried of parents reading. The "game" is the type of weed, and the "controller" is the device you use to inhale it.
(parents near by)
Teen 1- dude I was playing some gamecube with Patrick over the weekend, we should hella play some gamecube this saturday
Teen 2- hell ya! I got some dank games, but what controller should we use?
Teen 1- I think Patrick has some controllers we could borrow
Teen 2- Shweet!