Any of various large marine decapod crustaceans valued for their edible tail flesh; especially Thenus orientalis (family Scyllaridae) of northern Australia.
Origin
1970s.
Definition of Moreton Bay bug in US English:
Moreton Bay bug
noun
Any of various large marine decapod crustaceans valued for their edible tail flesh; especially Thenus orientalis (family Scyllaridae) of northern Australia.