agro - Agro represents the hate a NPC has for a PC. It is used in many ways, such as to describe the fact that a player is on a mob's hate list (I can't regen, I've aggroed the mob!) or to describe the action of doing something to become hated by a NPC (Go aggro that mob and bring it here). Agro can also be used to describe that a mob is KOS (Watch out, that dragon is aggro!) or even that a mob is currently engaged by another player (That other group aggroed the named before us!).

agro radius - The distance at which an unengaged, KOS mob will aggro (add to its hate list) a player.

charming - Charming is the process of altering the "will" of a mob to force it to perform actions against its normal behavior at your command. For example to make it stop attacking your group and start attacking its fellow monsters. Charming is accomplished through magical effects. The duration of charm spells is usually random making this very powerful tool also a dangerous one.

dungeon - A zone (usually underground) inhabited by large numbers of hostile mobs where adventurers can go in search of experience and items.

group - An adventuring party comprised of two to six players. The members of a group share experience gains and losses and (usually) loot earned. Being in a group also allows you to cast on and receive buffs from the other members of the group.

KOS - "Kill On Sight". This is used to describe mobs that attack players without provocation. By extension it can also be used to describe hating something or someone very much. KOS can also be used to describe having very bad faction to the point that a whole faction of NPCs attacks you. (I'm KOS to dark elves.)

mez-tanking - Getting agro from a mob to keep it from hitting someone else. The goal is to get the mob to hit a (second) tank instead of other, less resistant, characters in the group / raid. Mez-tanking is usually used by groups without a better form of crowd control to keep ads from hitting casters or priests while the rest of the group is killing the main target.

MMO - Massive Multiplayer Online

MMOG - Massive Multiplayer Online Game

MMORPG - Massive Multiplayer Online Role-Playing Game. A multiplayer role-playing game (like EverQuest, EverQuest II, etc) where characters and the world state is saved on dedicated servers providing a persistant world in which players interact with each other and with server-controlled entities.

mob - Another term for NPC. The term `mob` comes from the old MUD denominations of Mobile or Mobile OBject. See NPC.

NBG - Need Before Greed. A loot sharing principle which dictates that those characters who need an item to use it themselves have priority over those who would take it to sell it or give it to an alt.

newbie - A term used to describe new players.

NPC - Non-Player Character. An entity controlled by the server for purposes of providing merchant services, quests, flavor or enemies for the players. Every merchant you see in cities, monster, guard and even the cats and dogs you see roaming the cities are NPCs.

PC - Player Character. An entity that is controlled by a player, representing that player's "being" (avatar) in the game world.

to aggro (aggroed) - See agro.

to kite (kiting) - A combat tactic employed by characters able to do damage at a distance (with ranged weapons or spells usually) in which the player stays out of melee range of the mob by running from it while damaging it.

to zerg (zerging) - A tactic, usually frowned on and considered unskilled, of defeating a strong monster by overcoming it with massive numbers of players or with players that die over and over, fighting as if they are cheap expendable units. From the StarCraft game by Blizzard Entertainment which features an unit named "zergling" which is cheap to produce and usually used in great numbers as expendable cannon fodder.

twink - A twink is a lower level character that has items or buffs it could not normally obtain that have been given to it by higher level characters in order to make it more powerful. EQ2's item and buff system limits this practice very much compared to EverQuest 1.

zone - A specific geographical area of the game world within which you can move without the game needing to load new graphical assets. Similar to a level in a singleplayer game. NPCs cannot move between zones, but players can. Some zones have level and/or key requirements to enter.