Edge - An advantage over an opponent.
Encryption - A software security measure taken by online casinos to ensure that online transactions are safe from hackers.
En Prison - (French word) The stake left on the table in roulette for another spin after backing an 'Even-money' bet and the outcome was zero or double zero. It is like a bonus, offered in some casinos.
Even Money Bet - A bet with odds of 1:1. A bet that pays you back the same amount that you wagered, plus your original wager.
Expected Win Rate - In slot machines, the percentage on the total amount of money wagered that you can expect to win back over time.
Eye in the Sky - Slang for video surveillance cameras used by casinos, usually placed on the ceiling above the gaming area.
Face Cards - The Jack, Queen, and King of any suit of cards.
Fill - In poker, to draw a card that makes a five-card hand (straight, flush, full house, straight flush).
Fill Up - In poker, to fill a full house.
Finales - A type of group bets on numbers ending with the same digit. Examples: Final 7 means bet on the numbers 7, 17 and 27 (three chips). Final 2 means bet on the numbers 2, 12, 22 and 32 (four chips).
Finale Schnaps - In French roulette, an order given to the croupier to place a bet on numbers 11, 22 and 33.
Firing - Betting a lot. A player who is Firing is wagering large sums.
Fish - A player who loses money. (It is said that "If you can't spot the fish at the table, YOU are the fish.) See also "Shark".
Flash - A type of no-download casino software where you can play instantly.
Flat Betting - A way of betting where the same amount is bet on each wager. For example, if a player always bets $10 on each hand or spin and never raised or lowered their bet, they would be said to be flat betting.
Flat Top - A slot machine whose jackpot is always a fixed amount, as opposed to a progressive.
Flea - An annoying person who wants something for nothing. One who expects to be comped for a small wager.
Flop - In poker games, such as hold'em and omaha, where five community cards are dealt. The first three of these cards are dealt all at once, face up, and are called the flop. Games with a flop can be called flop games.
Front Money - Cash or bank checks/cheques deposited with the casino to establish credit for a player who bets against that money.