A collection of slang and acronyms as used by English-speaking groups in EVE Online. I want to stress that this is necessarily incomplete. There are literally thousands of terms unique to EVE Online, so this will only be a survey of the terms and abbreviations that seem the most common to me. I have eschewed definitions for the most common terms in EVE Online, such as the races and ships, in favor of more obscure words. Also included are some terms that are common to many MMO games.
As a general rule, try entering parts of unknown terms into the market search. Most slang terms are abbreviations of longer words or a diminutive form. For example, Harbinger becomes "harbie" or "bingie."
ABC Ores: Arkanor, Bistot, and Crokite, respectively. These three ores are the most valuable of the standard ore types. This term is often used to when discussing the economics of mining in null-sec.
AC: Autocannons are one of two kinds of projectile turrets, being intended for closer rather than longer range. See "Arties."
AFs: Assault frigates are tough, frigate-sized ships that can tank a great deal of damage. Though long cited as under-powered, they excel at missions that do not permit larger ships to run them.
Apoc: The Apocalypse is an Amarr battleship with a devastating range bonus to lasers.
Arties: Artillery guns are one of two kinds of projectile turrets, being intended for longer rather than closer range. See "AC."
BC: Battlecruisers are a class of ships that fall between cruisers and battleships. They make good stepping stones for pilots that are not ready to fly battleships.
BS: Battleships are the largest sub-capital class of ship. They are powerful and versatile, making them the workhorse of fleet PVP and the most common ship used for high-end missions.
Bubble: An area in which warping is impossible, generated by the interdictor or heavy interdictor classes of ships, or by mobile warp disruptors (an anchorable device that projects a field in which warping is impossible). In order to enter warp, one must either leave the bubble radius or destroy its source.
Can-Baiting: The act of jetissoning an item into space so that another player will pick it up. Once that player has taken the item, it is legal to attack them no matter what area of space one is in. This is considered particularly villainous because the players targeted are usually too new to know better. See "high-sec."
Cane: The Hurricane is a Minmatar battlecruiser that is useful for its powerful damage bonuses. An "artiecane" is a hurricane that is fitting artillery, see "Arties."
Caps: Capital ships are the largest ships in EVE Online, including the versatile carriers and devastating dreadnoughts.
Ceptors: Interceptors are speedy, frigate-sized ships that find use primarily by "tackling" larger ships. They rely on their speed for survivability against more heavily armed ships.
Comms: Communication channels, usually teamspeak or ventrilo. For example, a CEO might demand that his members "get on comms" when he wishes to address them.
Complexes: The dungeons of EVE online, complexes are either static (always present) or non-static (generated temporarily for a mission or exploration encounter). Many complexes prevent "MWDs" from being used. Also known as a plex, not to be confused with the PLEX cards that are used to maintain a subscription.
COSMOS: Special constellations that contain unique static complexes, unusual exploration sites, agents floating in space offering one-time missions, and other interesting things. They are very good for quickly raising faction status, but notoriously buggy. For example, as of this writing it is impossible to fully run the Amarr COSMOS missions as intended because of a problem with one of the agents.
Cycle: The time it takes for a module to activate and then de-activate, so that it may re-activate again.
Dictor: Interdictors are frigate-sized ships that can temporarily project a "bubble" that prevents nearby ships from warping away. They are a critical yet fragile part of most fleets, and usually the first thing to be shot at in any engagement.
Domi: The Dominix is a versatile Gallente battleship capable of fielding a powerful complement of drones. They see much use as "ratters" or "remote-rep" fleets.
Dreads: Dreadnoughts are a powerful class of ship that are capable of entering an incredibly dangerous siege mode that locks them in place and amplifies damage.
ECM: Electronic counter-measures are the most popular variety of electronic warfare module. They work by temporarily turning off a ship's ability to lock targets.
Ewar: Electronic warfare modules are a classification of modules that jams or otherwise hinders the targeted ship, without inflicting damage.
Failure Cascade: A term (probably coined by the Mittani) used to describe the moment when an EVE organization's destruction becomes inevitable. Each failure further disheartens the corporation or alliance members, resulting in the organization breaking apart or retreating to empire.
Geddon: The armageddon is an Amarr battleship with a powerful rate of fire bonus to lasers.
Gyro: Also called gyrostabs or stabs, Gyrostabilizers are a module used to increase the damage and rate of fire of projectile turrets (artillery and autocannons).
HACs: Heavy assault cruisers are tough, fast ships used for close-range combat. They are among the most versatile ships found in EVE Online. Properly piloted, they able to engage larger or smaller ships in solo combat. Properly coordinated, they are able to engage most other fleets.
Hictor: Heavy interdictors are very tough, cruiser-sized ships that can either project a field in which warping is impossible, or target a single ship.
High-Sec: Also called Empire, this is the area of the game that has .5 security status or up. Most players live in empire because non-consensual PVP is made very difficult by various game mechanics. The most common ways of obtaining PVP are by declaring war, "can-baiting," or "suicide ganking."
Hot Drop: The act of jumping a capital fleet in for the purpose of ambushing one's enemies. Capital fleets travel by jumping to beacons (called cynosural fields) that are broadcast by ships or starbases.
HS: Heat Sinks are modules that improve laser damage and firing time.
I-Stab: Inertia Stabilizers, a module used to improve maneuverability at the expense of signature radius, causing the ship to be easier to lock and to take more damage from weapons. It is especially useful for heavier ships.
K-Space: Known space. The solar systems that are on the normal EVE map. See "W-space."
Log-On Trap: The act of logging ships off at a particular place with the intent of logging them back on when enemies are present, in order to ambush them.
Logoffski: A pejorative, mildly racist term used to describe logging off a ship in order to avoid a fight. Most often used by organizations that have run afoul of russian alliances or corporations.
Low-Sec: Low security space surrounds "high-sec" and has partially penalized PVP, in the form of sentry guns that will assist parties that are under attack at gates or stations. See "high-sec" and "null-sec."
Mega: Two possible meanings. The first is megacyte, one of the most valuable minerals. The second is the powerful megathron, a Gallente battleship that makes great use of hybrid turrets.
MFS: Magnetic Field Stabilizers improve the damage and rate of fire of hybrid turrets (blasters and railguns).
MWD: Microwarpdrives are the most popular speed-boosting module in EVE, offering a 500% speed boost at the cost of capacitor and signature radius. Most PVP ships are fit with MWDs. Ships being targeted with a Warp Scrambler module cannot use their MWDs. Contrast with "ABs."
Neuts: Energy Neutralizers are a kind of energy vampire module that greatly reduces the target's capacitor, but at a high capacitor cost to the ship using them. See "nos."
Nos: Nosferatus are a kind of energy vampire module that drains capacitor from the targeted ship and give it to the "nossing" ship, so long as the target's capacitor is at a higher percentage. See "neuts."
Null-Sec: Also known as pirate space or 0.0 (because its security status is 0 or lower), PVP is completely un-penalized in these areas. There are two kinds of null-sec. First is NPC 0.0, also known as pirate space, that is controlled by one of the various pirate factions in EVE. Second is conquerable null-sec, which are solar systems that can be taken over by and controlled by players, and then upgraded with stations and various improvements. See "truesec," "high-sec," and "low-sec."
OD: Overdrive Injector Systems are used to improve a ship's speed at the expense of cargo space.
Point: Modules that prevent warping have a number indicating how powerful they are. Warp disruptors have one point, warp scramblers have two, and warp disruption field generators using targeted disruption have infinite points. Points are countered by fitting Warp Core Stabilizers (see "WCS").
POS: Player owned starbases, also called towers. These are anchored at moons and used to mine moons, to perform various construction and research jobs, or as bases of operation for PVP ops. They were previously used to obtain "sov."
PVE: Player versus environment, meaning combat with NPC pirate or other forces that are not controlled by players. See "high-sec" for the area of space most associated with PVE.
PVP: Player versus player combat. See "null-sec" for the area of space most associated with PVP.
Rats: NPC pirates that spawn in belts or on gates. "Ratting" is the act of killing these ships for bounties or loot.
Remote Rep: Remote-repair fleets are based around clumping several ships together, and repairing each other as injured. Much as fleets will focus fire on their targets, these ships focus their repairing ability on friendly ships that are taking damage.
RSDs: Remote Sensor Disruptors are a form of electronic warfare module that reduces the target's lock speed and maximum targeting range. They have fallen into disuse since certain changes made them less useful.
SB: Sensor Boosters are a module that improves lock time and maximum targeting range.
SBU: Sovereignty Blockade Units are structures that are used to contest sovereignty in a solar system. Once more they have been onlined at more than 51% of the stargates in a system, it is possible to attack the "TCU".
Slow-Boat: Moving to something without warping. For example, one might jump through a gate only to find a hostile fleet, and slow-boat back to the gate to escape them.
Sniper: A ship set up to shoot at distances beyond most ships' ability to harm.
Sov: Sovereignty can be either of two things. First, it is a skill that trained by CEOs in order to allow a thousand more players to join his corporation, per level trained. The second meaning is more common, that being the act of having control over a solar system via EVE game mechanics. Sov lets "POS" use less fuel, and allows certain special POS structures to be anchored, giving a home-field advantage to the group that controls that area of space.
Stabs: Two possible meanings, see "warp core stabilizer" and "gyros."
Suicide Ganking: The act of killing a ship in "high-sec" even though one's ship will be blown up by CONCORD as a result. Usually done if a ship is carrying an expensive enough cargo to make it worth it.
Tackle: Having a warp disruptor or warp scrambler active on a ship, possibly also with a stasis webifier active. The point being that the targeted ship cannot escape via warping. Before a ship can be blown up, it must usually be tackled. Otherwise, it will warp off.
TCs: Tracking Computers are a mid-slot module used to improve the tracking and range of turret weapons. See "TEs."
TCU: Territorial Control Units are a structure that maintains sovereignty in a solar system, allowing an alliance to control that space. They are invulnerable unless "SBU" structures have been anchored at more than 51% of the stargates in a system.
TD: Tracking Disruptors are a class of electronic warfare module that cause the target to inflict less damage with turret weapons.
TEs: Tracking Enhancers are a low-slot module used to improve the tracking and range of turret weapons
TP: Target Painters are a class of electronic warfare module that causes the target to take more damage from missiles and guns.
Truesec: The true security status of a solar system. All "null-sec" systems show a security status of 0.0, but in fact they actually have a range of statuses ranging from 0 to -1. The lower a system's truesec, the more dangerous and lucrative the local NPC pirates will be.
Turrets: Most non-missile weapons, including lasers, blasters, railguns, artillery, and autocannons.
Vaga: A Minmatar heavy assault cruiser, the vagabond is the premier ganking ship. It is often used for attacking un-escorted ships of all kinds. See "HACs."
W-Space: Wormhole space. The un-mappable systems found on the far side of most wormholes. See "K-space."
WCS: Warp Core Stabilizers are a module that counters warp disruptors and warp scramblers. Because they incur heavy penalties to a ship's ability to lock targets, they are usually only fit by ships that want to avoid PVP, such as industrials. See "point."
Webs: Stasis Webifier modules reduce the velocity of the targeted ship. Due to recent mechanic changes, most players are fitting Warp Scramblers for PVP and Stasis Webifiers for PVE.