"Flabby skin" refers to skin that is loose, weak, and lacking firmness or tightness. It often occurs as a result of weight loss, aging, or a lack of muscle tone. Full definition
According to scientists, smooth objects stick to slightly greasy, flabby skin much like Bogdan's. (livescience.com)
I would imagine that after losing a lot of weight you would definitely not lose cellulite... mostly because people who lose a lot of weight sometimes have that excess flabby skin. (celluliteinvestigation.com)
After Little A was born, I loved being able to wear my Pink Blush Maternity clothes because they weren't super tight, they hid that little pooch, and the patterns also helped to disguise that extra flabby skin from pregnancy. (lifewithmylittles.com)