10 cent line

In money line contests, a ten cent difference in the money lines between the favorite and the underdog.

20 cent line

In money line contests, a twenty cent difference in the money lines between the favorite and the underdog.

Action

Any wager; The total amount bet, either from the bettor's point of view or that of the house. In baseball, placing a bet no matter who pitches.

Added Game

A game not part of Las Vegas regular rotation posted as an accommodation to customers. This is always a straight bet.

AFC

American Football Conference

ATS

"Against the spread," taking points rather than betting with the spread and laying points.

Bet

Any wager.

Book

An establishment that accepts wagers on the outcome of horse racing and sporting events.

Buck

A $100 wager.

Buy

A player pays an additional price to receive half a point or more in his favor on a point spread game.

Canadian Line

A combination point spread and moneyline in hockey.

Chalk

A favorite.

Circled game

A game where the maximum bet is restricted, usually due to injuries.

Cover

When a favorite wins by more than the required number of points.

Dime

$1000.00

Dime Line

A line where the juice is 10%.

Dog

The team perceived to be most likely to lose. See underdog. 

Dog Player

One who mostly plays the underdog.

Dollar

$100

Double action

An "if bet" that is processed if the precedent bet wins, ties or cancels.

Double header

Two separate games played by the same teams on the same day.