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Oxford named “brain rot” its 2024 Word of the Year on 2 December 2024, after more than 37,000 people took part in a public vote. The choice reflects the phrase’s renewed visibility in conversations about online content—not a medical finding that internet use damages the brain.
What does “brain rot” mean?
Oxford’s 2024 definition describes a supposed deterioration in someone’s mental or intellectual state, especially one attributed to consuming too much trivial or unchallenging material, particularly online. The phrase can also describe content considered likely to have that effect. The wording “supposed deterioration” matters: Oxford was defining how people use the expression, not diagnosing a condition.
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Oxford reported that use of the phrase increased by 230% between 2023 and 2024, according to its language data. That figure compares those two years; it is not a measure of changes in anyone’s cognitive ability. Oxford University Press’s announcement connected the phrase’s renewed prominence to concerns about excessive consumption of low-quality online material, including social-media content, as well as humorous, self-deprecating use in online communities.
Why did Oxford choose it?
Oxford said its experts considered public input, the vote and language data when selecting the winner. The process combined people’s sense of the year’s conversations with evidence of how language was being used. At a launch event, Oxford Languages president Casper Grathwohl described users as “the experts of the English language,” alongside evidence that helps reveal what is happening to it.
#1 Best Overall
The phrase won from a six-entry shortlist chosen to reflect moods and conversations shaping 2024. Oxford said the shortlist followed analysis of its 25-billion-word corpus. The other entries were:
- demure: associated with style and behavior;
- dynamic pricing: changing prices;
- lore: shared background knowledge;
- romantasy: a fiction genre;
- slop: low-quality AI-generated content.
Oxford opened public voting in November 2024 and announced the result on 2 December. More than 37,000 people participated, according to the winner announcement. The shortlist and voting call were described in Oxford’s 14 November announcement.
Rank #2
Where did the phrase come from?
“Brain rot” is much older than its current internet-culture use. Oxford traced its earliest recorded example to Henry David Thoreau’s Walden, published in 1854. Thoreau wrote: “While England endeavours to cure the potato rot, will not any endeavour to cure the brain-rot – which prevails so much more widely and fatally?”
That literary example shows the phrase was available long before social media. Its present-day prominence reflects a renewed use of an old expression, rather than a newly coined term. Oxford reported in June 2025 that “brain rot” had been added to the Oxford English Dictionary. The OED update also noted that Oxford had found no evidence that brains actually deteriorate as a direct result of phone or social-media use.
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Is “brain rot” a real medical condition?
Oxford’s Word of the Year designation is a language award, not a medical diagnosis or scientific conclusion. Its definition records the expression’s meaning and use. Oxford’s 2025 OED update made a specific caveat: it said there is no evidence that phone or social-media use directly causes brains to deteriorate. That statement is Oxford’s reported qualification; it should not be mistaken for a comprehensive review of all research on screen use, attention or mental health.
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