fat·​berg | \ ˈfat-ˌbərg How to pronounce fatberg (audio) \
plural fatbergs

Definition of fatberg

: a large mass of fat and solid waste that collects in a sewer system The toxic lump of congealed fat and household waste—known as a fatberg—was 40 metres long and so heavy that it broke the 1940s-era sewer.— Rebecca Ratcliffe Restaurants are a big contributor to fatbergs: Thames Water, the London utilities company, found nine out of 10 fast-food eateries lacked adequate grease traps to stop fat from entering the sewers.— Eve Watling

First Known Use of fatberg

2008, in the meaning defined above

History and Etymology for fatberg

fat entry 3 + (ice)berg

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The first known use of fatberg was in 2008

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Cite this Entry

“Fatberg.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/fatberg. Accessed 1 Dec. 2020.

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