Top Definition
What happens when an obese person's stomach has shrunk and expanded enough times that two crescents of flabby flesh hang down, creating the illusion that they have a pair of buttocks up front.
That is a tremendous bumach.
by Wylie June 24, 2003
1 more definition
5 Words related to bumach
The merging of boobs and stomach on the exeptionally obese
OMG look at the bumach on that
by Gavindasagoo June 05, 2010

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