For instance, a scratch off card is a fixed-odds game, as are the simulated horse racing games that are popular in many online casinos.roulette game drop UNLOCK ROULETTE SNIPER A gambler who plays for large stakes. Being a High Roller is often times relative. Extreme High Rollers are also referred to as "Whales". The Cage: Where a casino keeps its money. Carpet joint: A casino catering to high rollers. Check: Casino chips. Croupier: The guy at the roulette table who. High Roller - A term for a gambler who is known to spend a lot of money in the casino. What qualifies a gambler as a high roller will differ from casino to casino.