A gambling expert who is not extremely wealthy or showy; a casino regular who makes enough to know the manager and get by.
I come in here and count cards once a week to pay the rent, nothing fancy, just a low roller.
Used to refer to an individual or individuals who can't handle life's most simple tasks. Usually has a crappy car and no ladies. Also refered to as a busta.
Damn, you see that low roller fuck up three blunts in a row?