A person from the Australian state of New South Wales; used as slang derogatory by Victorians and Queenslanders.
Explanation: The three eastern states of Australia are Queensland in the north, Victoria in the south, and New South Wales between them. They are colloquially seen as being Canada, Mexico and the USA respectively. Since seppo is a slang term for American (see above definitions), it becomes a slang term for a New South Welshman.
Victorian: The damn seppos won the 2005 AFL premiership.
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