mod. having well-defined abdominal muscles. : Andy works hard to try to get a gut that's cut.
Dictionary of American Slang and Colloquial Expressions by Richard A. Spears.Fourth Edition. Copyright 2007. Published by McGraw Hill.
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Someone or something that is superior to examples of a similar nature, as in This book is a cut above his previous one. This idiom uses cut in the sense of "a higher degree or stage." [Early 1800s]