If you say that someone has flab, you mean they have loose flesh on their body because they are rather fat, especially when you are being critical of them.
[disapproval]
Don had a hefty roll of flab overhanging his waistband.
Synonyms: fat, flesh, flabbiness, fleshiness More Synonyms of flab
flab in British English
(flæb)
noun
unsightly or unwanted fat on the body; flabbiness
Word origin
C20: back formation from flabby
flab in American English
(flæb)
noun
Informal
sagging, flaccid flesh
Word origin
back-form. < flabby
Examples of 'flab' in a sentence
flab
Shed some flab through diet and exercise.
The Sun (2014)
It is aimed at helping them shed the flab after the festive excesses.
The Sun (2015)
And one in three think it will take four months to lose the flab.
The Sun (2015)
When did that unsightly neck flab get there?
Times, Sunday Times (2012)
One in five cases of cancer is caused by excess flab.
The Sun (2015)
Do two minutes per day of each of our simple exercises and send those flab rolls packing.
The Sun (2011)
She is booked to get this year's excess flab removed at the end of the month.
The Sun (2012)
In other cases, excess flab was a contributory factor.
The Sun (2016)
So in the battle against fat and flab, do people need a helping hand?
Times, Sunday Times (2011)
The youngster's face is so surrounded by rolls of flab he can barely open his eyes.
The Sun (2011)
Of course, the only way really to shed the flab and keep it off is through exercise.
Times, Sunday Times (2013)
He sorts out the meat from the flab in the festive TV cooking shows.
Times, Sunday Times (2008)
Best of all, you don't have to set foot in a gym to lose your festive flab.
The Sun (2014)
MUSIC to the ears of those of us wanting to lose festive flab - listening to tunes during exercise can boost a workout.
The Sun (2010)
Lose the flab and look great in just 12 WEEKS.
The Sun (2007)
As so many of us are aware, knowing the causes of those extra rolls of flab doesn't necessarily mean we change the behaviour that causes them.
Times, Sunday Times (2013)
I was left with saggy skin around my stomach and I resorted to wearing baggy jumpers to hide the excess flab.
The Sun (2016)
(noun)
Definition
unsightly or unwanted fat on the body
He had a hefty roll of flab over his waistband.
Synonyms
fat
ways of reducing body fat
flesh
Illness had wasted the flesh from her body.
flabbiness
fleshiness
weight
beef (informal)
heaviness
slackness
plumpness
loose flesh
Additional synonyms
in the sense of flesh
Definition
the soft part of the body of an animal or human, esp. muscular tissue