See more synonyms for flab on Thesaurus.com
  1. flabby flesh; unwanted fat: Daily exercise will get rid of the flab around your waist.
  2. the condition of being flabby: Most of the new recruits had run to flab in civilian life.

Origin of flab

First recorded in 1920–25; back formation from flabby
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for flabs


  1. unsightly or unwanted fat on the body; flabbiness

Word Origin for flab

C20: back formation from flabby
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for flabs



"fat, flabbiness," 1951, back-formation from flabby.

Online Etymology Dictionary, © 2010 Douglas Harper