- Slang One who spends freely and extravagantly, for luxuries or activity.
- Slang one that gambles rashly or for large stakes.
- Slang a business, eg a big firm, that spends or invests liberally or rashly.
- a gambler just who wagers considerable amounts of cash, frequently in a gambling establishment.
- a gambler which wagers a large amount
- a person who uses lavishly and ostentatiously on activity
Sentence for "high roller"
Urban Dictionary for "high roller"