Gambler
A gambler can mean many things:
It can mean anyone who wagers money.
It can be synonymous with a maniac. Often, people who enjoy drawing, even with bad odds are called gamblers. These types of gamblers are considered fish.
It can mean a professional, solid poker player. According to Doyle Brunson, a gambler is the nickname of the highest breed of poker player. They can win significant amounts of money at high stakes games.
See also: Rounder, Grinder, Maniac.
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