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Jyutping ngong6 geoi1 geoi1
Pinyin gàng jū jū

Definitions (粵典–words.hk)
  1. 形容詞
    戇居​;​傻頭​傻腦
    really stupid, slow-witted, dumb
Definitions (Wiktionary)
  1. adv, Cantonese
    stupidly, cluelessly; looking like a fool
    • 戆居居企喺度
      戆居居企喺度
      ngong6 geoi1 geoi1 kei5 hai2 dou6
      to stand [somewhere] looking like an idiot
Definitions (Kaifangcidian)
  1. 儍乎乎
  2. 傻頭傻腦 – 傻头傻脑
  3. 笨頭笨腦 – 笨头笨脑
  4. 傻乎乎的
  5. 傻里傻氣 – 傻里傻气

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Jyutping ngong6 geoi1 geoi1
Pinyin zhuàng jū jū

Definitions (CC-CANTO)
  1. (adjective) to look like an idiot who is at a loss on what to do;