The state in which a person playing Call of Duty is focused on nothing but the television screen. They don't have any other body functions excluding breathing, and yelling.
In arising from your CoD Coma a person will often times experience great hunger, drowziness, and maybe even depression.
"Dude, I was in my CoD Coma for like 6 hours last night; i didn't go to sleep until like 4 in the morning."
"Bro me too, when awoke from my CoD Coma I was hungry enough to eat a man's dick off."