We don't have synonyms for yabbie yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are yabble, labbie and cabbie.
(n) :
Alternative spelling of yabby. [(Australia) Any of various freshwater crayfish, typically of the genus Cherax, valued as food, especially Cherax destructor of southeastern Australia.]
(n) :
Alternative spelling of yabby. [(Australia) Any of various freshwater crayfish, typically of the genus Cherax, valued as food, especially Cherax destructor of southeastern Australia.]