
Generative AI, like most technologies, can be abused. When that abuse becomes noticeable enough for a leading dictionary to take note, it’s a sign the phenomenon has reached the broader culture.
On Sunday, Merriam-Webster announced that “slop” is its 2025 Word of the Year, capturing how the word has come to summarize the onslaught of poor-quality AI-produced material spreading across social media, search listings, and the wider web. The dictionary defines slop as “digital content of low quality that is produced usually in quantity by means of artificial intelligence.”
“It’s such an illustrative word,” Merriam-Webster president Greg Barlow told the Associated Press. “It’s part of a transformative technology, AI, and it’s something that people have found fascinating, annoying, and a little bit ridiculous.”
When choosing its Word of the Year, Merriam-Webster’s editors analyze search trends and usage data, then agree on the term that best sums up the year. Barlow told the AP the surge in searches for “slop” signals growing recognition that users are encountering counterfeit or low-caliber content online.
Dictionaries have been following AI’s influence on vocabulary for several years: Cambridge named “hallucinate” its 2023 word of the year because of AI systems’ propensity to produce convincing but false statements (long-time Ars readers will be pleased to know there’s another dictionary term for that as well).
The pattern shows up across internet culture, which is full of fresh terms. This year, Oxford University Press chose “rage bait,” meaning material crafted to incite anger and drive engagement. Cambridge Dictionary selected “parasocial,” referring to one-sided bonds between audiences and public figures or influencers.
Distinguishing the useful from the worthless
As the AP notes, “slop” first appeared in English in the 1700s to denote soft mud. By the 1800s it described swill fed to pigs, and later it came to mean rubbish or items of little worth. The AI-related sense extends that long-standing use for something undesirable and low-quality.

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