In the 1930's, "It" was the pop term for "sex appeal"; so that a popular song might croon "To me, you've got It.", and one major company's advertising campaign featured "The It Girl".
For some reason, 'ZGal' reminds me of 'The It Girl'.
Zgal or zGal, in the right typography, might be an OK banner for a brandable site for, or about, women.
You'd have to have an idea of what Z is supposed to imply about a ZGal, and you'd have to develop the site.
Perhaps a tell-all blog written by the ZGal; or a forum for those who identify with being a ZGal.
I don't think the name is worth much without a site to demonstrate a concept.
Anybody out there have ideas about what Z can stand for? Zulu Gal?
Get out your dictionaries...Turn to Z...Go!
---J.