Formerly known as "OMG", "GMO" was created by a couple of VERY intelligent people in order to stop the madness that is (or was) "OMG". It can also be known as "GMFO", since, well, you'll know why...the definition of "GMO" is not only oh my goodness! messed up, but is also "goodness! my oligarchy!". However, since recent studies have found that "GMO" ALSO means "genetically modified organism", it has been also been developed int "MOG" (Melon of gum disease)
by **spazzy** January 20, 2007

by Lenny Troy December 6, 2018

by Sushi Jones January 4, 2019

usually used to refer to a boy who is a bit of a rudeboi but like to dress good and look good therefore looking emo. its the words gangster and emo put together therefore becoming gmo.
Boy1: Mandemm what are you wearing. you look like an emo.
Boy2: Nahh manndemm, im goin owt with tha gash init so i gta look gud, its gmo.
Boy2: Nahh manndemm, im goin owt with tha gash init so i gta look gud, its gmo.
by C-Dott March 26, 2008

by Becca DeBus September 17, 2017
