high roller

Noun

high roller (plural high rollers)

1. (Canada, US, informal) A gambler who wagers large amounts of money, usually in a casino.
   • They were all "high rollers" against faro, had plenty of money, and, if the cards came favorably, would "chaw up" a bank in double-quick time.1873, [John O’Connor], “Inventors”, in John Morris, editor, Wanderings of a Vagabond. An Autobiography, New York, N.Y.: Published by the author, →OCLC, page 178
   • Before long, Zarin developed a reputation as an extravagant "high roller" who routinely bet the house maximum while playing craps, his game of choice. Considered a "valued gaming patron" by Resorts, Zarin had his credit limit increased at regular intervals without any further credit checks, and was...1990 October 10, Robert Cowen (Judge of the United States Court of Appeals for the Third Circuit), Zarin v. Commissioner, archived from the original on 19 Oct 2017, 916 F. 2d 110
2. (Canada, US, informal) One who has a lot of money and lives luxuriously.
   • The "Baron" bowed. This was a new complication, but it was all in the day's work. Of course, the whole thing was plain enough. Fatty Welch was "working" some swell guys who thought he was a real high-roller. Maybe he was going to pull off some kind of a job that very evening. Perhaps this big chap...1905 September, Arthur [Cheney] Train, “The Extraordinary Adventure of the Baron de Ville”, in McAllister and His Double, New York, N.Y.: Charles Scribner's Sons, →OCLC, page 59

   Synonyms:

   two week millionaire