Green’s Dictionary of Slang

narangy n.

[Dharak narang, little; applied to those with authority who rank immediately lower than a station manager]

(Aus.) a dandy, a ‘swell’.

[Aus]J. Furphy Such is Life 53: Jack Ward, the senior narangy.
[Aus]Baker Popular Dict. Aus. Sl. 48: Narangy, As for ‘silvertail’.