I've started using Har'ey, rainbow, to refer to LGBTQ+ people: Har'ey tach, Har'eynganpu', Har'ey loD ghaH'a' etc. DeSDu' and I came up with this while sitting in a gay bar and struggling to talk about it.
This is decidedly not canon, and has nothing to do with fictional Klingons. I also don't hate le'yo', pride, being used with lgbtq connotations. (Google Klingon Pride and there's a good picture of the Timmins Klingons with a le'yo' sign.) I don't have a good way to be more specific than that, yet. le'yo'ngan ghaH, loD ghaH parmaqqayDaj'e'. ???
Tangent: Think of the valences
maqoch and
chaj could take on in some gay/lesbian/bi/pan fiction!
Another tangent: SIHwI' and SIHmoHwI' for "top" and "bottom."