Often, big leagues.Informal. the area of greatest competition, highest achievement or rewards, etc.: He's a local politician who isn't ready for the big league.
n. a situation where competition is keen and a high level of performance is expected. (Usually plural. Referred originally to major league sports.) : You're in the big leagues now—no more penny-ante stuff.
mod. and big-league. professional; big time. (From baseball.) : When I'm a big-league star, I'll send you free tickets.
Dictionary of American Slang and Colloquial Expressions by Richard A. Spears.Fourth Edition. Copyright 2007. Published by McGraw Hill.
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