Hey NGU, It's been a while since I posted anything useful, so I decided to post this.
Since the "Insert New Page" button isn't working for me I'm posting everything here for now, but once I find out how I'm fucking shit up I'll make this thread more tidy.

Steps:
1. You need to create a google account if you don't already have one.
2. Go to You must login or register to view this content.
3. Click "Create New Document"
4. Rename it to "School Chat"
5. Click "Share"
6. Enter all your friends google emails (Make sure you switch therir permission to VIEW ONLY or they can edit your document!)
7. Now that you have everyone invited, tell them to join and then open the chatbox and you will be able to talk to everyone.
8. You can post rules in the document if you want because everyone is able to see it immediately.
Notes:
If someone is causing trouble, you can kick them from the chat by clicking "Share" and removing them from the list.
You can make others admin as well by changing their permissions.
The school won't be able to detect this and they won't block google so there's basically nothing they can do.
Just make sure you use personal emails and not school ones because they will be able to shut it down through that.
Teachers won't be able to see your chat unless you share the document with them.

Okay guys, I really hope this helps you out.

So simple to do! I must do this next time, when I am in the Computer Lab.

Just remember to use an email that the school doesn't have access too and they will never be able to stop it!