Green’s Dictionary of Slang

smart or showy in execution, appearance or sound of voice.

1957		L.P. Hartley Hireling 90: She’s bought new sprauncy clothes for the children.
1962		Sydney Morn. Herald 8 Apr. 74/1: ‘If you weren’t “sprauncy” (smart) they wouldn’t let you ashore.
1969		Guardian 4 Feb. 7/2: The ‘sprauntsy’ (showy) antique dealers.
1985		Guardian 29 July 12/5: I’ not sure I’ll be back, all refreshed and sprauncy.
1991		Observer (London) 9 June 12/1: [advert] Great looks. Nice figure [...] sprauncy wheels with low-profile tyres.
1995		Age (Melbourne) 19 Nov. 31/4: It sounds like a sprauncy cocktail.
2003		Guardian (Profile) 24 May 29/2: Zoe heller took over the big interview spot [...] she did a fairly sprauncy job in my opinion.