Free video-slots that give you "Casino Coins" (CC) that you can redeem for drinks/food.
The free games will be very, very basic (no multiplay or bonus features), and you might earn enough over a few hours for 1 free drink. Limit free game spins to a certain rate per hour.
Pay into the game and you'll get better unlocks. Pay continually and you'll increase a "combo meter" that will tilt things even more in your favor. Pay small extras that let you customize the video slot interface with your favorite characters, hats, sounds, etc. that are tied to your casino account rewards card.
Urgh.
Went there with a friend that spends a lot in slots and we all (party of 8) drank and ate for free because of that for the entire night.
I know it created some friction after a while when the company realized that calling users a synonym for fat, even if internally only and without that intent, was a bad idea (their game also targeted girls making it worse).
You probably already know this, but for those that don't, this phrase was borrowed from the casino community. Seems apt, no?