Left over tuna is basically just when a guy eats a girl out and makes out with her afterwards. The girl will then taste her own vagina juice. It's not a pleasant experience to go through.

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.