Top definition
A massacre occurring in your intestines after eating something either spoiled or something you know you shouldn't have.

ex: Yo man, that cheesecake caused serious gastrogenocide last night. I had diarrhea coming out of my ears
ex: Yo man, that cheesecake caused serious gastrogenocide last night. I had diarrhea coming out of my ears
by The Naked One July 10, 2014
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