An old clipping from the 4 March 2012 issue of The New York Times Magazine: "That Should Be A Word" by Lizzie Skurnick.
Grammando: (Gruh-MAN-doh), n., adj. 1. One who constantly corrects others' linguistic mistakes. "Cowed by his grammando wife, Arthur finally ceased saying 'irregardless.'"
See also: Dictaplinarian (enforces correct pronunciation), and Spellot (takes a red pen to all documents).
Illustration by David Sparshott.
