Definition: In the sports gambling world, "parlay card" means a bet on two or more teams (or totals) where all of the games must win in order for the bettor to win the wager. But instead of betting on the current odds posted by the sportsbook, the odds for the games are listed on a card which the bettor fills out and turns in to the bookmaker.
Examples: Parlay cards are popular on college campuses, as they offer bettors the chance to make a lot of money for a very small wager.
