Used in a similar fashion as John Doe, except used to describe a generic boy from Northern NJ/NY corridor. It is possible to see varying dress, especially for Long Island plain jons, but typical garb includes plain no logo t shirts and sweats. Typically of the white boy wigger white T variety, but can vary. Basketball shorts, however, are a necessity to being a plain jon.

a phrase chiefly used in northern England.

it is a contracted form of "it'll be reet", where "reet" means "alright" or "OK".

living your life according to "be reet" is the only way to find happiness in life.