And no it's not about having a sexual attraction to pans
pansexuality: one who's affections, romantic platonic or sexual, are potentially geared towards anyone regardless of sex or gender identity.
Kind of like being bisexual, except bi only refers to two sexes.
Gender Fluid: a gender identity best described as a dynamic mix of boy and girl. A person who is Gender Fluid may always feel like a mix of the two traditional genders, but may feel more boy some days, and more girl other days.
Being Gender Fluid has nothing to do with which set of genitalia one has, nor their sexual orientation.
Genderqueer:a catch-all category for gender identities other than man and woman, thus outside of the gender binary and cisnormativity.[1] Genderqueer people may identify as one or more of the following:
having an overlap of, or indefinite lines between, gender identity and sexual and romantic orientation.[2]
two or more genders (bigender, trigender, pangender);
without a gender (nongendered, genderless, agender; neutrois);
moving between genders or with a fluctuating gender identity (genderfluid);[3]
third gender or other-gendered; includes those who do not place a name to their gender;[4]