I coined a word Friday night at dinner. I found one hit for the word (using apparently roughly the same definition) on Google, so I guess I wasn't the world-first to come up with it. It's a useful word, though. Feel free to add it to your permanent vocabulary.
homoindicative—giving signs that a person is likely to be gay
"Did you see Jane in that leather jacket on her motorcycle?" "Yeah, that's pretty homoindicative, don't you think?"