CH is a game term for a spell called complete heal, or anything that accomplishes the same sort of almost dead>completely full health with a different name. It's common use as a term in games like MMORPG's originated from the cleric spell "complete heal" in everquest, but it existed earlier in some muds and such. Other games like Anarchy Online have also had complete heals even though some versions of the spell went by a different name (Invocation of the Phoenix). CH order refers to the practice of stacking multiple healers on one tank and having them cast complete heal in sequence to keep the tank alive.
Healers line up on Joe, CH order is sally steve mike sam jeff, call off when you CH.
dude you rock! we would have gotten wiped if you didn't drop that CH at the end.
CH also known as Canuckle Head, is a particular troll within the online role-play community who seems to have no life of his own other than trying to pull one over on others online. He seems to suffer from mental illness, perhaps even bi-polar disorder; as he has frequently demonstrated abrupt bouts of anger of the simplest of things. CH is also a compulsive liar, and will manipulate those gullible enough to believe his lies in order to gain sympathy. Besides being a compulsive liar, he is also a compulsive pervert, who has no sense of personal boundaries and will lewdly pursue any female that catches his eye to the near point of being a pest, and when turned down thus makes the woman in question out to be the bad-guy.