campapotomus
When playing the game of Call of Duty Modern Warfare 2, a Campapotomus is someone who sits in a corner with a hearbeat sensor and/or ranger or model shotguns, this is most annoyin during Search and Destroy when the only person left is a campapotomus and everyone who is dead is forced to watch him.
Jack, "Ugh i got killed by another campapotomus and I was one away from a stupid chopper gunner"

Justin, "I'm sick of these campapotomuses its like every time I turn a corner he's blasting me with his rangers He just doesn't move.