Can't be true
It wasn't mentioned in this: http://www.cane-toad.com/movie.php
Scientists from the University of Sydney and the Department of Primary Industries have offered Aussies some slim hope that they will not ultimately be driven from the Lucky Country by rampaging hordes of cane toads who continue their inexorable march across Oz. Cane toads were introduced into Australia from Hawaii in the 1930s …
they're not pests, they're undocumented immigrants! Do what we do in California, hand em welfare, cash and food benefits, immunity from most laws and regulations, and set them up in the most powerful special interest groups American politics has ever seen!
Other kinds of toads perhaps (if there is nothing else) but licking this particular guy could kill you outright some freaks used to make toad skin stew but it was never a popular drug it made you more sick than high and cooking destroys some of the toxins ,so don't lick the giant toad.