haha no idea its actually Joe Blake! its Australian rhyming slang for snake not too sure if people other than brits and aussies use rhyming slang. eg Joe Blake = snake, trouble and strife = wife, china plate = mate..... so a sentance might go

G'Day china! hows the trouble and strife? oh not good mate she got bit by a joe blake yesterday!!

Translation
hello mate hows the wife? oh not good mate she got bit by a snake!