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noun

fatberg

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Fatberg (noun) means a huge solid mass of fat and rubbish that blocks a sewer.

noun
1
A huge solid mass of fat and rubbish that blocks a sewer.
"Months ago a tunnel was clogged with a fatberg. It took a team of workers a month to move it." — Carlos J. Cortes, The Prisoner (2009)
"Thames Water has become the latest object lesson in the predictable and predicted folly of privatised monopolies, aided by a regulator that’s an even bigger wet wipe than the fatbergs bunging up the sewers." — Marina Hyde, The tide is coming in fast on Rishi Sunak – and it’s full of sewage (2023)
"Then I worked in the sewers of Manchester – a six month stint of that, jabbing pressure-water-poles at fatbergs, tonnes of used kebab grease and congealed sump oil, woven together with thousands of used wet wipes." — Adam Roberts, Anne (2014)
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Etymology

From fat + berg, modelled on iceberg. By surface analysis, fat + -berg.

Frequently asked questions

What is the meaning of fatberg?
"fatberg" (noun) means a huge solid mass of fat and rubbish that blocks a sewer.
Definitions from Wiktionary, CC BY-SA 4.0 · etymology from Wiktionary