1. The combined word of precisely + exactly.
2. One of Super Karoru's catchphrases.
3. The new hip word everyone's saying.

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.

When something is so spot on, it is both precisely and exactly correct, necessitating both words, hence, "prexactly".