Word to describe a person found in a casino that cannot afford to be there. Casino rats smell like a mixture of coffee and stale smoke and are usually wearing dirty, dingy clothing to go with their filthy hands and hair. Casino rats generally chain smoke and are frequently seen telling sob stories to random casino patrons and then asking them for money and cigarettes. They can be seen at the casino just about every day of the week and can easily be picked out when they are observed walking around aimlessly looking at the floor for dropped money, tickets, or casino chips.
That lady is a real casino rat. Every time I have been at the casino she was there wearing the same stinky clothes harassing other people for handouts.