The term is pretty much unknown to Brits, it is Australian slang after Septic tank/yank, actually the term is 'Seppo' get it?

Corleone - 'ussies'!!! maybe I didn't get your humour, are you suggesting like me Alexa got it wrong and is mixing up her nationalities?

"Deaths in the Bible. God - 2,270,365
not including the victims of Noah's flood, Sodom and Gomorrah, or the
many plagues, famines, fiery serpents, etc because no specific numbers
were given. Satan - 10."