1. stands for Massive Multiplayer Ad Clickathon Games. A game like farmville or skeeball are great examples of this type of game. 2. Having to click more in a game then actually think of why you are clicking everytime.
Farmville, Skeeball... many Facebook applications. An example of not a MMACG that could be easily misunderstood is Cursor X 10. CX10 is actually a game that requires you to think where you are clicking.
by Arkerz August 09, 2009