Top Definition
is the fat that oozes out over a person's pants as a result of being squeezed to tightly by their clothes. It is usually attributed to abnormally large people wearing abnormally tight clothing. It is an extension of the "love handles."
"Man, that chick in front of me had her underblubber hanging out way to far, like it was just sitting there."
by Damiens February 05, 2008
5 Words related to underblubber

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