any of several sciaenoid fishes that make a croaking noise, esp. Micropogonias undulatus(Atlantic croaker), found off the Atlantic coast of the southern U.S.
n. a doctor. : The croaker said my tonsils have to come out.
Dictionary of American Slang and Colloquial Expressions by Richard A. Spears.Fourth Edition. Copyright 2007. Published by McGraw Hill.
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