A Spanish expression translated litterally as "Oh mother!" but it have several meanings like Oh My God, Holy shit, oh crap, and anything that makes you look like WTF.

Marginalized Orientations, Gender identities, And Intersex. it’s meant to be an all inclusive umbrella term for asexuals, homosexuals, multisexuals, trans people, and intersex people. Alternative to LGBTQIAP+
Alternative to MOGII, easier to pronounce.