India, Dec. 19 -- Geologists are worried. So are strength trainers. Everything is suffixed with 'core' now. Mildly sad Tuesday? Mopecore. Accidentally wearing black and fur? Mob-wife core. Decluttering: Domestic goddess core. There's Mermaidcore (aquatones, gleaming textures), Mumblecore (content about mundane life), Office-sirencore (we don't know), even Tomatogirl core (ditto).

The descriptor has stretched across fashion, beauty, music, food and review chatter. So, guess what the tendency to christen everything as core is called? Corecore. And the exhaustion that follows? Corerot. It's trend burnout, but with a trendy name.

Forget the geologists. Forget the strength trainers. Coremageddon (we invented this!) isn't a bad thing. It's no...