A baseball bet where no specific pitchers are designated. Also a term used to describe bets, as in “I have action on the Packers game.”

Taking both sides of a bet in the event of a discrepancy with the lines, which makes either side of the bet a sure profit regardless of the outcome.

Abbreviation for “against the spread.”

When a bet that looks like a winner unexpectedly loses.

Offer of perks made by online sportsbooks to entice customers.

Offer of perks made by online sportsbooks to entice customers.

A person who accepts bets.

Slang for $100.

The favorite.

A bettor who typically takes favorites.