An island said to exist by the admins. It is rumored to be far off the map and contain green magma, used to enrich Blargium. Because no non-admin player has seen it, some say it is a myth. Blargisle was later stated in patch notes to have been removed. Developer Blargety stated that everything Blargisle did can now be done at Desert Island.
The picture to the right is a picture posted by Junior Developer DaredevilDJ which is supposedly a "Blargshroom" on Blargisle.