What does Juice mean in betting?

Juice in betting is the bookmaker’s commission already built into the odds. In meaning, the term is very close to vig or vigorish.

How does it work?

When a player bets on a bookmaker’s line, they are not dealing with a pure probability, but with a price that already includes the bookmaker’s edge. That built-in markup is what people call juice. The higher it is, the worse the price for the player and the more expensive it is to enter the market.

The term is especially common in American betting slang. If someone says there is too much juice in a line, they mean the bookmaker is taking too much through the odds.