油脂仔 [－－－]

Jyutping jau4 zi1 zai2
Pinyin yóu zhī zǎi

Definitions (CC-CANTO)
  1. young adult male who dresses up oddly or dresses up like Grease
Definitions (粵典–words.hk)
  1. 名詞
    飛仔
    young hooligans; "teddy boys" (from the Chinese name of the film "Grease")