“Gratis spin” is a popular term in online casinos, referring to a free chance to spin a slot machine reel without having to wager any money. Players often seek out casinos that offer gratis spins as part of their promotions to increase their chances of winning without risking their own funds. These complimentary spins can provide valuable opportunities to hit jackpots or trigger bonus features. Many online casinos use gratis spins as a way to attract new players and retain existing ones by offering them as incentives. Players should always check the terms and conditions associated with gratis spins to understand any wagering requirements or limitations that may apply.