Noob - Somebody who isn't good at playing the game or if you are new. In CF Philippines the word "weak" was more popular than noob.
Lagger - Someone whose computer or internet runs slower than others, so the character can kill several people before feeling the effects of the damage done by other players upon him.
Camper - Someone who stays in the same area (usually hidden or behind cover) and kills people from behind. Most of the time, campers are discovered and killed after they repeat it 2 or more times.
Tanker - player that playing non-tactics, just shoot and kill.
Sniper - player using Sniper Rifle, most of them are campers.
SL Noob - Chants when you are the user of SCAR Light. In the Philippines, they'll chant you SCAR Gay when you use SCAR Light.
AFK (away form keyboard) - IDLE players
Blockers - Also called "Harang" in CF Philippines, a term where a player is blocking the way to delay players from advancing, mostly on Mutation Mode / Zombie Mode and Terminator Mode / Hero Mode X
Offclient - Players playing without any extra anti-cheat.(Mostly used in Competitive Scene)
Onclient - Players playing with any extra anti-cheat. (Mostly used in Competitive Scene)
Kicker - A person who is trying to kick an individual, people often use these terms to abusive players trying to kick another player
Flooder - Someone who floods the chat with his macros / spams some lines. Usually people with no life or trying to recruit for clans.
Spam - Same as Flooder, sometimes used for people flooding chat with meaningless lines.
Top - Ace.
Street-Sweeper: Is a Brazilian Term that refers to all players who take your gun after you die. On the Brazilian Portuguese is "gari/lixeiro/lixo".
Abangers (Wait 'n Kill) - a term in CF Philippines refers to some players (mostly snipers) who wait in a certain location and shoots players within their range of sight.
Looters - Same as Street Sweeper, but players will wait/follow you around until you die just to loot/get your gun.
Jeje Gunner - a term in CF Philippines to all Steyr TMP users/players.
AimBot - A hack that lets people automatically aim at their enemies so the only thing they have to do is click the left mouse button.
Triggerbot - A hack that lets people automatically shoot if the crosshair crosses the other player.
Shoot Through Wall (STW) - A hack which makes the bullets go through normally unpierceable walls such as stone or metal.
Wall hack. - A that hack enables player to see through walls so they can see opponents and ambush them at their advantage
One-Hit (OHK) - Hacks that let player kill opponent with a single shot regardless of distance and weapon fired.
No-recoil - Hacks that help player fire without recoil, or turn bolt-action sniper rifle into Automatic gun. Sometimes semi-automatic sniper can be misunderstood as recoiless hack
Speedhack - A hack that lets the user go at blistering speeds.
Hacks / Cheat - Illegal programs that let the people using them have an advantage or put others at a disadvantage.
Spray - Without aiming, a player fires randomly in the direction of an enemy, killing them while wasting many bullets. It is useful in close combat especially with SMG's.
Rush - to go in without concern of the protection of one's teammates and try to surprise the enemy team.
Kick [insert name] - used by someone who wants another person to be kicked of the game.
F11 - When a vote is issued to boot someone, a person may type this in to encourage people to press F11, which makes the players vote 'Yes' for the boot.
F12 - The same as F11, except F12 means that the players vote 'No' for the boot.
Wannabe (wnNb or wnb) - Playing like famous people. (1 taps, etc.)
Tryharder - Playing as good as you can and kill everyone.
Parkour - in Mutation Mode variants, parkour is using moving skills to get away from the mutants.
Ninja - Players who take out multiple (or the whole) enemies or doing reckless actions (like defusing bombs when the enemies are still around) without being seen and detected by the opposite faction. This is generally known as "stealth", but the term "ninja" is more famous in CF Indonesia.
A - used in Search and Destroy/Destruction Mode games by players who don't know how to use the computer voice messages. This refers to A site.
B - Same reference as the A. This refers to B site.