Meaning of rainbow-collar

rain•bow-col•lar

Pronunciation: (rān'bō"kol'ur), [key]
— adj. Informal.
  1. being or of an employee who combines work or experience on the assembly line with more technical or administrative duties; having both blue-collar and white-collar duties or experience.
  2. being, of, or for a factory worker supplanted by automated equipment and retrained for technical or administrative duties.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.