Most military people refer to civilians as brown-suiters, as opposed to blue-suiters (AF), green-suiters (Army) and (I assume though I cannot recall having heard the term white-suiters for people in the Navy.

When you work for DoD, as opposed to one of the services, you hear references to purple-suiters, who are military members who are interchangeable so to speak. Where I worked we might have a Navy guy replaced by an AF guy replaced by an Army member. The positions were purple-suiter positions.



TEd