on9仔 [－－－－]

Jyutping ngong6 gau1 zai2
Pinyin on9 zǎi

Definitions (粵典–words.hk)
  1. 名詞、粗俗
    戇​鳩​而​通常​年​輕​嘅​人​（​量​詞​：​個​／​條​）
    a fool or an idiot, who is usually young
  2. 參看
    戇鳩仔