123easy said:
I'd honestly prefer if we created a term for herm-specific frottage instead, as I noted before, just as we separate homosexuality into 'gay' and 'lesbian'. It keeps it cleanly organized. Ah, the issues of having non-binary genders being defined in a binary language.

So what, a frottage term that is specific to dickgirl on male, herm on male, dickgirl on dickgirl, herm on herm, as well as male on male?

This is one of those cases I don't think we need more categories of the same term. If someone doesn't want herm/dickgirl frottage, they can search frottage -herm -dickgirl.