Brain-rot - Etymology, Origin & Meaning
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Brainrot, coined by Thoreau in 1854 from potato-rot, means "decomposition in the citadel of life" (Algernon T.B. de Bale, 1879). Origin: metaphorical decay.

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 ?