It's a sexual act, while having sex in the jacuzzi, you hold your partners head under water( hence the jacque cousteau). After you let them up, while they take a deep breath, you pull out, jack off and shoot your load in thier mouth.

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.