- A time of year, usually in October, when Mark designs 50 Crypids from 50 states during a one-month period.
Origin: From (English usage 2015; coined my Mark C. Eberhardt on Instagram).
Any creature that may or may not exist. Sightings of various cryptids have been reported, but their reality has not been proved.
Origin: From (English usage 1983; coined by John E. Wall in the ISC Newsletter).