white rider(redirected from a white rider)
"Conquest" or "Pestilence, the first of the Four Horsemen of the Apocalypse, so named for the white horse upon which it rides. The way this horrible disease has ravaged the countryside, it's like the white rider is here among us—a terrifying thought.
Farlex Dictionary of Idioms. © 2022 Farlex, Inc, all rights reserved.