pink slime /ˌpɪŋk ˈslaɪm/ noun3 •(informal, disapproving) A meat byproduct produced from scraps by heating and then treating with ammonia to produce a food additive.Pink slime is allowed in any school in America by the USDA. — 2011 •Low-quality, mass-produced internet content, especially AI-generated.I paid a website developer to create a fully automated, AI-generated ‘pink-slime’ news site, programmed to create false political stories. — 2024 •An undesirable pink-colored microbial mass occurring in the slurry used in making paper.