Amen
I suppose we have a few unique words—‘bisizual’made me laugh the first time I heard it, even though it may or may not be a description of a mythical creature. Apple and pear have way more connotations for me than for the non-fat lovers out there—at least I assume they do.
I’ve also thought that we need a secret hand shake or code word. I once saw a mixed size couple in California and—an assumption on my part—figured the guy was an FA. I had an impulse to start chatting with him but realized I had no idea how to get things going. Hand shake or code word—then we‘d be like the early Christians who drew a fish in the sand, if that story is even true...‘jiggle’ might be an appropriate code word

Although, say that to someone who‘s not among the initiated—prepare to be slapped