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On a morbidly obese individual, large flaps of skin hanging down below the waist, forming pockets of flab under the sweatpants, about where the pockets would be on real pants.

Usually observed on American rednecks carrying large misspelled signs protesting against the government.
Dude, did you see the pocket flab on that teabagger?
by RealPatriot December 17, 2013
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