If you want to get banned forever. The fastest most efficient way is to cuss a lot in one single sentence. If it doesn't bann you forever than wait until you can go back on again. You can also go on Penguin Storm but you know it's really not worth downloading it if you're just going to bann you're penguin forever.
You cuss a lot and then you hack into club penguin using penguin storm or something. And once you do that type in an id code that is not real and you will be banned. Or if you hack into it and they find out your banned forever.