A
- Ace — When a player kills the entire enemy team in one round
 - Active Map — Maps that are played by the professional scene and include Inferno, Dust II, Cache, Overpass, Train, Mirage, and Nuke
 - ADR — Average Damage per Round that does not factor in Overkill damage
 - Against the Spread — Betting for the underdog or against the odds
 
- Aimbot — A hack where a bot automatically locks onto the enemy target and is commonly found in first-person shooter games like CS:GO
 - All-In — When a bettor puts his whole inventory into one pot
 - Anchor — (1) The worst player on the team that is dragging the team down 
(2) The last CT (counter-terrorist) on site when the other CT players rotate 
- Anti-Eco — A round where a team attempts to counteract an eco round by the enemy team
 - Anti-Strat — A strategy that is used to counteract the enemy team’s strategy
 - Arbitrage — When a bookmaker uses the process of buying and selling to manipulate the prices of a bet in order to achieve a profit
 
B
- Bait — (1) When you put your teammate in danger by the enemy team
(2) Making the enemy converge on a certain location by exposing yourself
(3) When a player on the T (terrorist) side plays aggressively in a certain area to make the CT side waste their grenades before the actual push - Bankroll — The amount of money that you can use to bet
 - Bet — Putting money down on the outcome of an event
 
- Betting Strategy — A strategy or method that is used to give the bettor an advantage over the house
 - Bettor — A person who bets on a certain outcome
 - Bomb — An item that the T side plants in one of two sites
 
- Bookmaker — A person or entity that gives out odds in order to accept bets by bettors
 - Breaking Even — Not winning or losing money
 - Buffed — When a weapon is improved by the developers of the game (such as increased damage per bullet)
 
C
- Carrying — When a single player supports the weight of the entire team by playing better (think LeBron in the 2018 playoffs)
 - Chalk — The outcome of a certain event that is most likely to occur
 - Choking — When a team or player gives up a huge lead
 - Closing Line — The value of a bet that is most similar to the price before the market closes
 - Closing Odds — The value of a bet that is most similar to the price before the market closes
 - Clutch — When a player is outnumbered by the enemy team and still manages to win the round
 
- Coin Flip — A popular CS:GO betting game in which you bet on which side the coin will land on
 - Commission — The cost imposed by a bookmaker or betting exchange when you place a bet or when you win a bet
 - Counter-Terrorist (CT) — A side in CS:GO that wins by defusing the bomb, killing the entire enemy team, or preventing the terrorist side from planting the bomb
 - Crash — A CS:GO betting game in which a person predicts when the multiplier of the bet ends
 - Crossfire — Setting up several positions in a certain area to ambush the enemy team when they arrive
 
- CS:GO Betting Exchange — An online market that allows bettors to bet on the outcome of certain events (the difference between a bookmaker and a betting exchange is that, at a betting exchange, you bet against another bettor)
 - CS:GO Professional Team — A team that plays against other teams in LAN events or Valve-sponsored tournaments in order to win a cash payout
 - CS:GO Skins — A cosmetic that allows a player to change the appearance of a weapon or glove and can be bought and sold in the Steam market for cents or hundreds of dollars
 
D
- Dice — A popular CS:GO betting game where you input odds manually to determine how much the payout multiplies on your bet
 - Double Action — A bet that is placed conditionally on if the previous bet wins
 
- Double Bet — When a bettor bets twice the initial amount of the first bet after he wins
 - Double Kill — When a person kills two enemy players in a single round
 
- Drift — When the odds increase, the possibility of a certain event is less likely to occur
 
E
- Eco — A round where a team saves their money by buying cheap pistols and SMGs instead of more expensive but stronger weapons (“full eco” means that a team doesn’t buy anything at all)
 - Economic Damage — A term to describe damage to the other team’s economy by kills or the planting of a bomb
 - Edge — The upper hand over another bettor or bookmaker by taking advantage of ineffective margins or insider knowledge
 - Entry Frags — The first kill by a team in order to take over a certain area of the map (most commonly used after getting a kill at a site)
 
- EV Betting — A type of strategy using a formula that focuses on how much money will be won or lost after a certain amount of bets (Odds of Winning x Amount of Money Won per Bet) – (Odds of Losing x Amount of Money Lost per Bet)
 - Execute — A strategy that is used to take over a site
 - Exit Frags — Getting a kill while saving in order to disrupt the enemy team’s economy
 
- Exotic — A riskier type of bet that involves guessing multiple winners of an event
 - Expected Value — A formula that focuses on how much money will be won or lost after a certain amount of bets (Odds of Winning x Amount of Money Won per Bet) – (Odds of Losing x Amount of Money Lost per Bet)
 - Exposure — Money that the bookmaker is risking if they lose
 
F
- Fake — (1) Pretending to plant a bomb on the T side in order to draw the enemy team out
(2) Pretending to defuse a bomb on the CT side in order to draw the enemy team out
(3) Making noise at one site to bait the CT side into rotating in order for the T side to plant at the other site - Favorite — The outcome of a certain event that is most likely to occur
 
- First-Half Bet — Betting on the result of the first half of a game
 - Fixed-Odds Betting — Betting using odds presented by the bookmaker that are predetermined
 - Flanking — Not attacking an enemy straight on, but instead going around behind them or to their side
 
- Forcebuy — Buying whatever you can because you need to (i.e., the last round before the half)
 - Frag — Slang for kill
 - Future — A bet on the winner of a certain event several weeks or months ahead
 
G
- Glass Cannon — Using a sniper rifle without any armor
 
H
- Handicap — Giving the underdog better odds
 - Handicapper — A person who assigns a mathematical advantage or disadvantage to a team in order to equal out the odds
 
- Handicapping — Assigning a mathematical advantage or disadvantage to a team in order to equal out the odds
 - Handle — The total amount of bets that a bookmaker has taken up
 
- Headshot — A shot to the head which deals a significant amount of damage to the player hit
 - HP (Health Points) — The amount of health a player has starting from 100
 
I
- ICB (Inventory Clearing Bet) — A bet based on a certain percent of your Steam inventory
 
J
- Jackpot — A popular CS:GO betting game that you essentially pay to win (the more skins you put in to achieve a higher value, the higher chance you have to win the entire pot of skins put in by other players)
 
- Joint Favorite — Two teams or more that have an equal chance to win
 
- Juice — A commission imposed by the bookmaker for placing a bet
 
K
- K/D — Kill/Death ratio represented by a variable
 
- Kelly Formula — The formula that is used to find how much in bets is needed in order to make the most money
 
- Kobe — A well-placed high-explosive grenade that gets a kill
 
L
- Lag — Having a bad connection or ping to the game server which leads to a slower reaction time
 - Laying the Points — Betting on the favorite of the match to win
 - Layoff — (1) When a bookmaker uses another bookmaker to bet against himself (in case his initial bet loses)
(2) When a bettor bets against his initial bet (in case his initial bet loses) 
- Limit — The maximum amount of money you can bet
 - Line — Synonym for odds
 - Linemaker — A person who calculates the odds for the bookmaker
 - Live Betting — Betting while the game is still going on
 
- Lock — An outcome that is almost guaranteed to win or the term for the person who bets on this outcome
 - Longshot — An outcome that is almost guaranteed to lose but has huge returns if it wins
 - Lurker — A player who picks off enemy players that are rotating
 
M
- Map Callouts — When you tell your team information using locations on the map
 - Map Selection — A process where two teams decide on which active maps to play in tournaments
 
- Match Bet — A way of making money by getting free bets offered by bookmakers
 - Middle — Winning a bet on both sides by using price movements or mistakes made by bookmakers
 
- MM (Matchmaking) — A procedure to look for matches against other players
 - Moneyline — Betting on whether a team will win
 
N
- NA (North America) — (1) Stands for North American servers
(2) An insult to a player who makes a mistake - Nap — The best tip of the day that is given out by a tipster
 
- Nerfed — When a gun is weakened to balance out the game
 - Ninja Defuse — When a player on the CT side defuses the bomb before the T side kills him
 
- No Action — A bet that is canceled and refunded or rescheduled
 - Non-Runner — When a team is scheduled to play but doesn’t show up
 
O
- Odds — The probability of an event occurring
 - Odds-On Favorite — Odds greater than a 50% chance of a specific event occurring
 - Oddsmaker — A person who calculates the odds for the bookmaker
 
- Off the Board — When the line is not being offered by the bookmaker
 - Outright Winner — A bet placed on the overall winner of a certain tournament
 - Over — A type of bet that speculates that the rounds of the game will be more than what the bookmaker proposed
 
- Overbroke — Betting percentage less than 100% which benefits the bettor
 - Overround — Betting percentage more than 100% which benefits the bookmaker
 
P
- Parlay — A type of bet that predicts the winner of two or more games rather than just one
 - Payout — How much you win from a bet
 - Peek — Gathering information in a certain area with the cost of exposing your body from cover to other players
 - Pick — No favorites and no handicap
 - Pick (CS:GO) — When you get the first kill on the enemy
 
- Ping — Millisecond count of the response time of your connection from your computer to the internet server (low ping equals fast – high ping equals slow)
 - Pistol Round — The first round of the first and second half of the game
 - Points Spread — The difference between the underdog and the favorite in numerical values
 - Post Time — When the betting starts
 - Pot — A term for the money you get if you win when you bet against another player
 
- Power Rankings — Past ratings that are used by bettors to predict future bets
 - Prefiring — Shooting a shot before you see the target
 - Prop Bet — A bet based on events that occur while the game is playing
 - PUG — A semi-professional pick-up game in CS:GO
 - Pushing — Moving or attacking at an area by yourself or with your team
 
Q
- Quad Kill — Killing 4 players in a single round
 
- Quasi-Buy — A type of force-buy where you can still afford to buy in the next round
 
R
- Reset — In CS:GO, every time you lose a round, your loss bonus money increases until you win, which would then reset the loss bonus back to $1400
 - Rotate — When you move to another spot in the map (most used to talk about when you move from Site A to Site B or vice versa)
 
- Roulette — A popular CS:GO betting game that is exactly like the actual roulette game with 18/18/2 odds
 - Round Robin — A type of bet where you can bet all the possible combinations of the parlays in one bet
 
- Rushing — Going to a site or location aggressively
 
S
- Saving — Not trying to fight the enemy team, but instead saving whatever grenades, armor, and weapons you have for the next round
 - Scalping — Making money on the spread of the back and lay price
 - Scrim — Short for scrimmage or practice game between two professional teams
 - Second-Half Bet — Betting on the outcome of the second half
 - Sharp — Slang for a successful bettor
 - Site — The only spots where you can plant the bomb as a terrorist
 - Slots — A popular CS:GO betting game where you try to match similar images onto a single line
 
- Split — Attacking a site from multiple locations
 - Sportsbook — Another name for bookmaker
 - Spread — Another name for handicap
 - Spread Betting — Unlike fixed betting, the bettor decides if the true outcome of the game’s spread will be higher or lower than what the bookmaker offered
 - Square — An amateur bettor
 - Stacking — Having more players in one location than normal
 - Stake — How much money you are risking
 
- Staking Method — A type of method where you use calculations to decide how much money you are putting in each bet
 - Steam — Fast, volatile movement in the line
 - Straight Bet — A type of bet where you wager on who will win
 - Strat — Short for strategy
 - Support — An unofficial role for a player who is more focused on the utility of the game like throwing ‘nades for cover and entry
 - Sway — Slang for misinformation
 
T
- Taking on the Points — Betting for the underdog and in favor of the point spread
 - Teaser — A type of bet that allows you to add or subtract points from the point spread for two games
 - Terrorist (T) — A side in CS:GO that can win by planting the bomb and getting it to detonate or by killing the entire CT side
 - Throwing — Losing a match on purpose or sometimes on accident once the team is tilted (playing poorly or erratically)
 - Ticket — A ticket is like a receipt that tells you the odds of your bet, when the game starts, how much you bet and will win, and what team you bet on
 
- Tier — A number grade of how good a team is (i.e., Division 1 in collegiate sports)
 - Tilt — A mental lapse where you become angry at the game and start playing poorly (typically after a team loses a lot)
 - Tip — Insider knowledge of the conditions of the players or the team (i.e., someone is sick)
 - Tipster — The person who gives out the tips
 - Tissue Price — The price decided by the bookmaker that comes from the perceived odds of the game
 - TK (Team Kill) — When you kill a player on your team
 
- Total — The total of how many rounds or kills were made by both teams in a single game
 - Totals Bet — A type of bet where you wager on if the real total will be lower or higher than what the bookmaker presented
 - Trade — Getting a kill after one of your teammates dies or vice versa
 - Triple Kill — When you get 3 kills in a single game
 - True Odds — The actual probability of winning not influenced by the bookmaker
 
U
- Under — Betting on whether the total in the game will be less than what the bookmaker presented
 - Underdog — The team that is less likely to win
 
- Unit — A percentage of your bankroll
 
- Utility — Another name for a grenade
 
V
- VAC — Another name for Valve Anti-Cheat
 - Value — Betting with odds lower than the probability, which would give the bettor more profit
 
- Valve — The company that created and develops CS:GO
 - Vigorish — Another name for the commission that the bookmaker applies to a bet
 
- Valve — The company that created and develops CS:GO
 
W
- Wager — Another name for a bet
 
- Wise Odds — Someone who knows a lot about what they are betting on