Both your real name and your store number. Nice.
You probably won't get your job back. What exactly did you say about the guest?
If you "needed" to say not nice things out loud and could not just not day it out loud, then you will probably run into a situation where you "need" to say something not nice and can't control yourself and end up saying it in front of the guest. Ticking time bomb.
Its one thing to say "fuck" if you stub your toe in a backroom in front of a leader. Another to swear toward/about a guest.