* Action: A wager of any kind.
* Book: An establishment that accepts wagers on the outcome of horseracing and sporting events.
* Bookie: Person who takes clients bets.
* Bankroll: Your available gambling money.
* Beard: A friend, acquaintance or other contact who is used to place bets so that the bookmakers will not know the identity of the actual bettor. Many top handicappers and persons occupying sensitive positions use this method of wagering.
* Buck: A $100 wager.
* Buy Points: Buy Points means that you can move the pointspread so that you give away less points with the favorite or get more points with the underdog, for both football and basketball. To do this you must pay an extra 10% for each ½ point you buy in your favor. For the NFL and NCAA football, you will pay an additional 15% to buy on or off of 3 points - also know as Key Points. And if you buy through 3 points, you will pay an additional 20%. NOTE: There are NO Key Points for basketball. You pay a flat 10% for each 1/2 point you buy. An example of how to buy off of 3 points: the Kansas City Chiefs (-3) are 3 point favorites. To buy 1/2 point and make them a 2.5 point favorite, you would need to lay $125 to win $100.
* Buy Point Table (Football Key Points):

Buy 1/2 point to 3

100/125

Buy 1/2 point off 3

100/125

Buy 1 point to 3

100/135

Buy 1 point off 3

100/135

Buy 1/2 point any other

100/120

Buy 1 point any other

100/130

* Canadian Line: A combination point line and moneyline in hockey.
* Chalk: The favored team.
* Chalk Player: Someone who usually only plays the favored teams. Rarely bets on underdogs. Also known as Favorite Freddie.
* Circle Game: A game in which the betting action is severely limited. Usually occurs in those games that feature key injuries, inclement weather, or unsubstantiated rumors regarding a team. Most bookies "circle" all Ivy League Games.
* Cover: To bet the spread by the required number of points. If such occurs you have "covered the spread".