Green’s Dictionary of Slang

snazzy adj.

also schnazzy, snazz, snozzy
[? snappy adj. (3) + jazzy adj.1 (1)]

1. [1930s+] of objects or places, smart, fashionable, brightly coloured.

2. of individuals, fashionable, smart.

3. [1940s] (Aus. teen) excellent, wonderful.