A term applied when a video game is released year after year with little or no improvements and/or innovations. A more serious form of a mission pack sequel. Comes from how the once popular Tony Hawk series of video games was run into the ground by Activision's greediness. Tony Hawk, and Guitar Hero are already victims, and Call of Duty is on the verge.
Notice how all these games are Activision published.
Hmm.

When you eat dirt for the first time and leave your family to build a shack in the woods