gilgie /ˈdʒɪlɡi/ noun1 •(Australia) Either of two small freshwater crayfish, Cherax quinquecarinatus and Cherax crassimanus, endemic to the south-west corner of Australia.“What say we catch gilgies? I've got a gidgee hidden down the river bank. There's some real big ones this time of year.” — 1965 formsgilgies