Chatlink is a place where you can talk to your friends unfiltered and unblocked.
You don't need any special desgination or room setup. Just type in a room name and you can talk in it!
Keep in mind that all chatrooms are public, so if you don't want the chance of someone else seeing your messages, try to use a hard-to-find chatroom name. Things like random letters and numbers, special characters, etc.
There really are infinite chatrooms but here are some good ones: