RACK - A container for carrying casino chips.
RAKE - In poker, a fee that the casino takes from the pot. It may be either a flat fee or a certain percent (5% - 10%).
RANK - In poker, the strenght of a card or a hand.
RFB - Room, Food and Beverage.
RIFFLE - To shuffle playing cards by holding part of a deck in each hand and raising up the edges before releasing them to fall alternately in one stack.
RIVER - In poker, the fifth card which is dealt in a hand of Texas Hold'em.
RVP - Recreational Vehicle Parking.