Sports betting is the act of placing a wager on the outcome of a sports event, where you predict which team or player will win, lose, or achieve a specific result. If your prediction is correct, you win money based on the odds set by the bookmaker.

A parlay is a type of bet where you combine multiple individual bets into one, and all bets must win for you to receive a payout. The potential payout is higher than placing each bet separately, but the risk is also greater since losing one bet means losing the entire parlay.

In sports betting, a "lock" refers to a bet that someone believes is a sure thing, meaning they are confident it will win. However, even highly confident bets can still lose, so the term is often used with caution.

Betting on sports can be fun and potentially profitable if done responsibly, but it also carries risks of losing money and developing gambling problems. It's important to set a budget, understand the odds, and never bet more than you can afford to lose.