Action: A wager of any kind on a game.
Against the Spread (ATS): A team's record against the point spread.
Arbitrage: Betting different sides of a game at different markets in order to lock in a profit.
Backdoor Cover: When a team scores unexpectedly at the end of the game to cover the spread.
Bankroll: Funds to bet with.
Book: A person or place that takes bets; short for "sportsbook" or "bookmaker".
Bookie: A person that takes bets and charges vig (usually an illegal enterprise).
Bookmaker: A person who sets lines and takes bets.
Buying Points: Additional points offered by a sportsbook in correlation to the posted line which the bettor can purchase through increased vigorish.
Chalk: The favorite in the game.
Circle Game: A game with lower betting limits.
Closing Line: The last line offered by a sportsbook before the game begins.
Consensus Pick: The majority percentage of wagered plays in a given game.
Contrarian Betting: Betting against the public.
Cover: An outcome of a game in which the team won or loss less than the point spread.
Dime: $1,000 bet
Dog: Short for underdog.
Dollar: $100 bet
Draw: When the result of a game lands on the spread and all wagers are refunded; also known as a "draw".
Edge: An advantage.
Even Money: Odds offered without vigorish. +/-100 odds.
Exotic: Not a straight or parlay bet; also known as a "proposition" or "prop" wager.
Favorite: The team expected to win a game based upon the point spread/odds.
Field: Teams or players not listed in a proposition bet.
Futures Bet: A long term wager, usually season long.
Grand Salami: The total runs/goals that will be accumulated across an entire league on a given day.
Handicapper: A bettor who attempts to predict the winner of a game.
Handle: All the money wagered on a game at a sportsbook.
Hedging: Placing a wager opposite a previously placed bet in order to cut losses or guarantee profit.
In-game Wager: Odds offered during a game by a sportsbook.
Juice: Commission taken by the bookmaker; also known as "vig" or "vigorish".
Key Numbers: Margins in a game that occur most often.
Laying Points: Betting the favorite.
Limit: Maximum bet permitted by a sportsbook.
Lock: A guaranteed winner.
Middle: When a bettor tries to bet before and after a line move in an attempt to win both sides with limited risk.
Moneyline: A bet which can be won if the team wins irrespective of the point spread.
Mush: A bettor who is bad luck.
Nickel: A $500 bet.
Oddsmaker: A person who sets the lines; also known as a linemaker and bookmaker.
Off the Board: Odds that are no longer offered by a bookmaker.
Over/Under: The cumulative amount of points that both teams score in a game; also known as the "total".
Parlay: A wager in which multiple teams are bet simultaneously with increased odds.
Pick 'Em: A game that does not have a favorite or underdog.
Point Spread: The number of points a favorite is expected to beat the underdog; also known as the "spread".
Proposition (Prop) Bet: A nontraditional bet on a game or a player; also known as "exotic".
Puck Line: Additional goals added to a hockey game with increased or diminished odds.
Push: When the result of a game lands on the spread and all wagers are refunded; also known as a "draw".
Return on Investment (ROI): Gains or losses on a wager(s).
Reverse Line Movement: A line move opposite of the higher betting percentage.
Run Line: Additional runs added to a baseball game with increased or diminished odds.
Runner: A person who places bets for another person; also known as a "beard".
Sharp: A professional sports bettor.
Square: An amateur, uninformed bettor.
Straight Up: The anticipated winner of a game, a moneyline wager.
Steam: Line movement in reaction to a syndicate of bettors wagers.
Stick: 1 million dollars
Teaser: Betting multiple teams simultaneously with adjusted point spreads and diminished odds.
Total: The accumulated score between teams in a given game; also known as "over/under".
Tout: Someone who sells picks.
Underdog: The team expected to lose a game based upon the point spread; also known as a "dog".
Units: A standard denomination of a wager usually 1-5% of a bettor's bankroll.
Vig/Vigorish: Commission taking by a bookmaker; also known as the "juice".
Wager: A bet
Wiseguy: A professional bettor; also known as a "sharp".