Flab definition

flăb
(informal) Sagging, flaccid flesh.
noun
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(informal) Soft, loose flesh on a person's body; fat.
noun
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Soft fatty body tissue.
noun
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1
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Origin of flab

  • Back-formation from flabby

    From American Heritage Dictionary of the English Language, 5th Edition

  • Back-formation from flabby.

    From Wiktionary