What is the definition of Melbourne Fumes?

"Melbourne fumes" is like the aromatic after-effect of a particularly long and exhaustive pub crawl through the city's infamous inner-city streets. Picture this: after a night of hearty pub food, loud laughter, and questionable decisions, the air in Melbourne's bustling suburbs is thick with the scent of burnt coffee, stale cigarettes, and, of course, the exhaust from thousands of early-morning buses and trams trying to escape the city's infamous 'fume barrier.'

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Here's a gloomy, edgy example sentence: "I ordered the most delicious 'Melbourne fumes' coffee, and by the end of my first sip, I couldn't shake the feeling that I'd just contributed to Melbourne's notorious air quality crisis."