Online Gambling Glossary

Online casino affiliate programs are expanding very fast across the United States, so it’s no wonder that both players and affiliates are interested in learning more about them. They want to know what specific types of commissions are provided, what kinds of games and bonuses they can expect, and more.

Online gambling terms can be confusing, even if you have experience in this area. The more you are involved in this industry, the more words you want to learn. For this reason, we have created a glossary of some of the most commonly-used online casino, poker, sports betting terms and betting strategy terms. Let’s begin!


An online marketer providing traffic to gambling operators to get financial compensation in return.

Affiliate Program

An affiliate program represents a marketing tool for the casino industry that pays third-party affiliates to get traffic to specific online casinos.

Against the Spread (ATS)

A type of bet in which the favorite must win by more than a predetermined specific amount (the point spread) to be successful.


A mandatory wager that poker players must place before they get cards. This wager contributes to the basic pot.


A gambling approach that includes wagering money on all possible outcomes of an event for a guaranteed profit.


Also known as a balance, it represents the current total amount of money players have at their disposal.

Blind bet

A type of bet in which poker players wager money before seeing their cards.

Bonus Codes

Any code (typically a string of random letters and numbers) that players must type in a designated field to claim a casino bonus.

Bonus feature

Typically, this feature is available in slot games only, even though some other casino games might offer bonus features. They are additional features that make games more fun and lucrative.

Buying Points

An option at sportsbooks in which bettors can boost the spread of their bet for a higher price.


A term used in poker games refers to a player’s acceptance of the current wager placed by a previous player.

Cascading/Tumbling Reels

An online slot feature in which hitting a winning combination leads to the destruction of winning icons and the appearance of new ones in their place. In this way, players get an additional chance to win a prize without placing a new bet.

Cashback Bonuses

A type of bonus representing a percentage of losses given back to players.

Casino Bonuses

A sum of money, free spins, or other incentives used by online casinos to attract new players or reward existing users.

Casino Games

Games available in online casinos. These games allow players to wager cash to get a chance to win something in return. Some of the most popular casino games include slots, blackjack, baccarat, roulette, craps, etc.

Casino tournament

A tournament managed by a casino is designed to attract players. In online casinos, slot tournaments are the most popular form.

Classic slots

An online slot game that is based on and/or inspired by old slot machines.


The sum that affiliates receive for referring players to online casinos.

Contrarian Betting

A betting strategy in which bettors bet against the most popular betting option at the moment.

Cookie Duration

A period of time during which the cookie stays on the player’s computer. This is used for tracking affiliate performance and acknowledging their earnings.


CPA stands for Cost Per Action/Acquisition, a payment model in which affiliates get paid when a player becomes a registered member of an online casino and places a deposit.


A decentralized digital currency. Examples of popular cryptocurrencies: Bitcoin, Ethereum, Tether, Litecoin, Dogecoin, etc.

Deposit Bonuses

A type of bonus that rewards players for funding their online casino account.


A slang term for a $1,000 bet.

Doubling up

Also known as the Martingale system, is one of the most popular gambling systems in the world. It requires players to double their previous bet if they lose the first time. In the event of a win, players start with the initial wager.


An independent testing agency based in the United Kingdom that focuses on testing, inspecting, and certifying online gambling software all over the world.

En Prison rule

A roulette term used for a rule that lets players get a second chance to win the round after placing an even or off bet.

Free Spins

Spins on a casino game (typically slots) that players can use without wagering any of their real money. Even though these spins are free of charge, the prizes players win are added to their balance.


FTD stands for First Time Depositor, or a player that has made their first deposit and activated the CPA commission.


Models that highlight the way a potential player goes from becoming aware of a casino to becoming a registered member.

Futures Bet

A type of bet that lets you wager money on events that will take longer to determine the outcome.

Gambler’s fallacy

A popular misconception among gamblers who believe that an outcome that has not occurred in a while will happen soon.

Game limits

The maximum and minimum amounts that can be wagered in a single round of a casino game.

Grand Salami

A parlay bet with over/under bets. Typically, it involves MLB and NHL betting and betting the totals scored for an entire slate of games.


A type of bet in which bettors wager on the opposite side of a current bet.

High roller

A player who makes significant bets on a regular basis.

House Edge

A casino profit is represented by a percentage of the player’s initial wager.

Hybrid Deals

A combination of CPA and Revenue Share models, which includes both fixed commissions and a percentage of the monthly revenue.

Instant Casinos

Also known as “instant play” casinos, they represent gambling websites where players can wager real money on a website without downloading any software.


A type of bet available in some online blackjack games when the dealer has an Ace as a face-up card. This bet will cover some of the player’s losses if the dealer ends up with a blackjack (21).


The biggest prize in a casino game.

Jacks or Better

One of the most popular variants of video poker.


A slang term for the fee that casinos charge for playing on their website. Typically, a percentage of the tournament pot.

Life-Time Deals

An affiliate model that provides lifetime commissions on all referred casino players.

Live Games

Casino games are managed by live dealers in specially designed studios and streamed on computers and/or mobile devices.

Loyalty Program

A specially designed online casino program that rewards active players. Typically, it relies on points given to players for wagering specific amounts of money.

Match Bonuses

Also known as “match deposit bonuses,” these are online casino bonuses that match the amount players deposit up to a certain percentage (and amount).

Mobile casino games

Casino games are optimized for mobile devices (smartphones and tablets). Typically, they can be played via a mobile web browser or a casino app.


One of the most popular types of bets in which bettors predict the winner of the match.

Negative Carryover

Losses on players from a month that are transferred to the following month. Ultimately, these losses negatively affect the affiliates.

No Deposit Bonus Codes

Strings of letters and/or numbers players must enter to claim a no deposit casino bonus.

Online Baccarat

A popular online card game in which players can place a bet on three outcomes: player, banker, or tie.

Online Bingo

An online game of chance in which players match numbers displayed on virtual cards with the numbers the software draws.

Online Blackjack

A popular online table game in which players must get a card sum value of 21 or as close as possible to 21 (without exceeding it) and beat the dealer’s hand.

Online Craps

An online dice game in which players wager money on the outcome of the roll of a pair of dice.

Online Keno

A lottery-style online gambling game similar to bingo.

Online Poker

An online casino game played with cards in which players try to beat the opponent’s (house or other players) hand by creating a better hand.

Online Roulette

An online casino game in which participants must choose one or several bets on single numbers, various groupings, color, odd or even numbers, or high or low numbers. The game involves a spinning wheel with marked pockets.

Online Scratch Cards

A card with covered sections that can be virtually scraped to reveal symbols. Players must scratch the predetermined combinations in specific positions to win this game.

Outside bets

A type of bet that players can make in roulette games. They promise lower payouts than inside bets, but they occur more frequently.


A type of bet in which participants predict whether the points total for a match will be smaller or larger than the values determined by the sportsbook.


Also known as an accumulator or simple acca, is a single bet that includes two or more separate wagers and depends on the outcome of all these events.

Payment Methods

The payment solutions that players can use to deposit or withdraw money from online casinos or withdraw their earnings from online casino affiliate programs.

Payout Table

A table that describes icons and/or combinations that provide rewards in casino games.


When neither team is favored.

Progression Betting

A betting system that relies on the adjustment of the size of players’ bets depending on the outcome of the previous bet (win or loss).

Progressive jackpot

A type of jackpot prize that keeps increasing thanks to the wagers of all players using that game. A certain percentage of every bet is added to the pot.


A type of bet that doesn’t depend on the result of the event.

Provably fair

An algorithm that vouches for the fairness of casino games.

Puck line

The spread betting option available to hockey bettors.

Reload Bonuses

A casino bonus that is given to players who have made at least one deposit at an online casino.

Revenue Share

An affiliate commission type in which affiliates get a predefined percent of a casino’s revenue earned from the referred players, also known as RevShare.

Rewards Scheme

A specially designed scheme by online casinos to reward active players.


RNG stands for Random Number Generator, a software solution used by online casinos that creates unique sequences of numbers, vouching for the randomness of casino game outcomes.

Run line

A type of baseball bet that lets bettors wager on a team’s winning by a specific margin or losing by less than a particular margin. Generally set at 1.5.

Scatter symbols

Symbols with special properties in online slots which pay prizes regardless of their position on the grid.


Also known as “slot machines,” these are gambling machines that provide a game of chance for their players.

Software Providers

Vendors providing casino games (slots, blackjack, poker, roulette, etc.) to online casinos.

Stacked symbols

Symbols in online slots that cover more than one cell on the grid.

Super Affiliate

An affiliate who drives significantly more traffic and registers more members for an online casino compared to average affiliates.

Table Games

Casino games played on tables. They usually include cards, wheels, and/or dice. Examples of the most popular table games include: poker, roulette, craps, blackjack, baccarat, Big Six Wheel, etc.


A type of bet that lets the bettor mix their bets on two independent games.


A measurement of the size of a given bet.

Video Poker

A casino game based on classic five-card draw poker.


Another term for a high roller is a player who makes significant bets regularly.

Wagering Requirements

A condition applied to a casino bonus that impacts the withdrawal of funds given to players by that promotion.


A hand gesture made by dealers to confirm that they don’t have hidden cards or items in their hands.

Web Wallet

An online wallet that lets users store fiat currency or cryptocurrency.

Welcome Bonus Codes

Strings of letters and/or numbers players must enter to claim a welcome casino bonus.

Welcome Bonuses

One of the most common types of online casino bonuses is designed for newly-registered players. They come in different forms, but most of them are match deposit bonuses applied to players’ first deposits.

Wild symbols

Symbols in online slots have the power to replace any basic symbol as long as they can help players form a winning combination on the payline or adjacent reels.


The process of withdrawing your winnings or earnings from an online casino or casino affiliate program.

Withdrawal processing time

The time needed for the online casino or casino affiliate program to check and approve withdrawal requests initiated by players or affiliates.