I believe that photo did the rounds on Twitter. For those who do not know, this is NOT an Australian species. It occurs in southern Asia – basically Thailand and the surrounding countries. The reason it looks like Jabba out of Star Wars is that it has inflated itself. It does so as a defensive mechanism to make it look bigger. The following 20 sec video shows an inflated individual deflating itself…
Australia does have its own version - the Turtle Frog
Myobatrachus gouldii, from the SW of WA. In fact, it occurs in Banksia woodlands on yellow sand very nearby to where I live. Its common name derives from the fact that it resembles a turtle minus its shell. This is a burrowing species that lives on termites around 1m underground. In contrast to most Australian burrowing frogs, this species burrows forward and not backwards. So the front legs are more powerfully built than the hind limbs.
Locally the species emerges from its burrows with the first significant rainfall towards the end of summer or beginning of autumn, to choose a mate. Pairs then disappear underground together but don’t lay or fertilise eggs until the winter. The eggs are the largest of all Australian frogs and the tadpoles undergo full metamorphosis whilst still in the egg, and so they hatch as froglets.

