You'll need to stick to quarter slots, and at that you risk being finished for the day in about 15 minutes. Whirl or World: A five-unit bet that is a combination of a horn and any-seven bet, with the idea that if a seven is rolled the bet is a push, because the money won on the seven is lost on the horn portions of the bet. Oasis Poker is a variation of Caribbean Stud Poker. The rules of Oasis Poker are the same as Caribbean Stud, except the player is allowed to exchange cards before the raise/f...