Thank you. I had the very same question, and thinking I was the only ignorant here, was afraid to ask.

´

The answer is so much more trivial than I had ever thought.

But wouldn´t "girl-girl sex" do? Or "lesbian"?

There are, after all, adequate words to say what is meant without resorting to bizarre abbreviations.

Or are we becoming a fan club here of RTBA (resorting to bizarre abbreviations)?