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Odds - The amount a bet pays off.
For example, 10 to 1, 3 to 1, 30 to 1, etc.
Off - Term used for losing bets.
Off-Track Betting - Betting by persons
not present at a race track.
On Tilt - Negative reaction to a losing
poker hand, resulting in poor judgement.
One-Roll Bet - In Craps, a bet that
will win or lose depending on one roll of the dice.
Open - In Poker, the player who bets
first.
Outside Bet - In Roulette, a bet placed
on the outside of the table in which 12 or 18 numbers are
bet on at a time. Opposite of Inside Bet.
Overlay - A bet in which the player
has an advantage over the casino. | 
