Glossary

The Gambling Dictionary
Entering an online casino, a poker room or any other Internet gambling site is like crossing into a new world in many ways. Although no passport needs to be stamped and even currency does not need to be converted, there is a new lingo to learn. Gambling terms, professional vocabulary, insider references and technical terminology are all listed in this section. Find the meaning of a new term you learn, scan for new terms you didn't know exist, or sort via the advanced tag search option for a variety of convenient browsing options.
 
A-Z
J
Jackpot
The cash prize that is awarded to a player based on certain criteria. It is also used in 5 card draw games with jacks or better as the opener.

 
Jackpot Drop
A special additional fee to the jackpot offered at a specific table or cardroom.

 
Jacks Back
A game that is played for high when no player who has a pair of Jacks or better is in the first round of betting. The game will change then from a high game to a specific lowball game.

 
Jacks or Better
The most common variation of Video Poker, Jacks or Better starts paying off for a pair of jacks. Playing with perfect strategy can yield a return of 99.54%.

 
Jammed
A large number of bets, raises or reraises to the pot. It can also describe a player who wagers aggressively.

 
Java
Sun Microsystems' programming language commonly used to write applications for mobile phones and popularly used for mobile gaming purposes for their easy download and smooth operating features.

 
Joker
The Joker is a special card found in card decks. As the 53rd card in the deck, it is usually a Wild Card, representing any card in its stead. There are usually two Jokers in a deck of cards, though they are not used in many games.

Some variants of poker allow the Joker to function in any capacity. It becomes a powerful factor in the game, assuring a pair, promoting a pair into a three of a kind, two pairs into a full house, and so on. Other poker variants may restrict the use of the Joker to function only as an ace, complete a flush or straight, not more.