I was watching an anime, and there was a scene in which the protagonists, after sneaking into a morgue, find their own dead bodies and confirm that they are, in fact, dead (there's lots of occult-y stuff going on, don't worry about it). Anyway, during the reveal, the main character says:
「まじで?僕ら死んじゃったでエフエーなの?」
I looked up what エフエー meant since it was clearly meant to be FA, which should be an abbreviation for something, but none of the words it stood for seemed to make sense for the context. I found things like Free Agent, Factory Automization, etc., but none of those make sense in this context. I guess the least weird one would be Free Agent, but unless there's some meaning to that phrase that Japanese has come up with separate from the English definition, it doesn't make sense. The translation that was given was, "Seriously? So we all died and that's it?" I don't have any problems with the grammar, it all flows normally, but I can't tell what FA is--we all died and what, exactly?