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Disgusting, nasty. Acronym for "Gross Me Out". Pronounced "guh-moh".
Man, that food contains Genetically Modified Organisms - ewwww, GMO!
by clymbon May 18, 2008
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genetically modified organisms and something that should have been in urban dictionary before 2019
aaah! that vegan fair trade local avocado kale doesn't say all natural! it's probably G.M.O-hipster 2019
by serrated boi 99 March 13, 2019
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A word a group of friends call each other to show respect.
Hey GMO!
by UrrMoMm November 13, 2019
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