From Wiktionary, the free dictionary
From zhoosh + -y.
zhooshy (comparative zhooshier, superlative zhooshiest)
- (originally Polari, British, Australia, New Zealand, slang) Showy, flashy, ornate.
2019 July 31, Kylie Klein-Nixon, “Ikea: Five things in the 2020 catalogue we hope to buy in New Zealand”, in Stuff[1]:First to catch out eye are the zhooshy ombre coloured cushions, Stravklint, and duvet set, Pipstakra but that's just the tip of the flatpack iceberg.