Casino referral bonus is an incentive offered by online casinos to reward players for bringing in new customers. When a player refers a friend to sign up and play at the casino, both the referrer and the new player can receive bonuses or free spins. This program not only encourages player engagement but also helps casinos expand their customer base. It is a mutually beneficial arrangement where existing players can earn rewards while newcomers enjoy enhanced gaming experiences. Participating in a referral program can enhance the overall enjoyment of online gambling.