It means Dinosaur. It was used to make fun of people, because no one knows what it means and your practically calling them a Dinosaur. The 'pet' is silent on the end of Frampet. So it's pronounced Fram. You are automatically a Frampet if you don't know what it means.

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.