The "over-under" is a popular type of wager in sports betting. It involves predicting whether the total score of a game will be over or under a specific number set by bookmakers. For example, if the over-under for a basketball game is 200 points, bettors can choose to wager on whether the combined score of both teams will exceed or fall short of that total. This betting option is common in various sports, including football, basketball, and baseball. It allows fans to engage with the game beyond just picking a winner, as they can focus on the overall scoring dynamics.