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Jyutping daai6 tau4 haa1
Pinyin dà tóu xiā

Definitions (CC-CANTO)
  1. (slang) a forgetful and absent-minded person
Definitions (粵典–words.hk)
  1. 形容詞
    好容易​就​唔​記得​嘢​,​冇​心裝載
    absent-minded; careless; literally: big head prawn
    • 你真係大頭蝦啊,戴住眼鏡又揾眼鏡。
      你真系大头虾啊,戴住眼镜又揾眼镜。
      nei5 zan1 hai6 daai6 tau4 haa1 aa3, daai3 zyu6 ngaan5 geng2 jau6 wan2 ngaan5 geng2.
      How careless you are! You already put on your glasses but you are still looking for them without noticing that.
    • 乜你咁大頭蝦㗎?未掹鎖匙啊!
      乜你咁大头虾㗎?未掹锁匙啊!
      mat1 nei5 gam3 daai6 tau4 haa1 gaa3? mei6 mang1 so2 si4 aa3!
      How come you're being so absent-minded? You forgot to take out your keys!
Definitions (Wiktionary)
  1. noun, Cantonese
    a type of big-headed prawn
  2. adj, Cantonese
    absent-minded; careless
Definitions (Kaifangcidian)
  1. 粗心的人
  2. 健忘的人
  3. 粗枝大葉的人 – 粗枝大叶的人
  4. 粗心鬼
  5. 馬大哈 – 马大哈
Examples (粵典–words.hk)
  1. Cantonese
    你真系大头虾啊,戴住眼镜又揾眼镜。
    你真係大頭蝦啊,戴住眼鏡又揾眼鏡。
    nei5 zan1 hai6 daai6 tau4 haa1 aa3, daai3 zyu6 ngaan5 geng2 jau6 wan2 ngaan5 geng2.
    • How careless you are! You already put on your glasses but you are still looking for them without noticing that.
  2. Cantonese
    乜你咁大头虾㗎?未掹锁匙啊!
    乜你咁大頭蝦㗎?未掹鎖匙啊!
    mat1 nei5 gam3 daai6 tau4 haa1 gaa3? mei6 mang1 so2 si4 aa3!
    • How come you're being so absent-minded? You forgot to take out your keys!
Examples (None)
  1. Cantonese
    坐我隔篱个女同学成日都好大头虾,啲人觉得佢好白痴,但系我觉得佢够天然呆好可爱。
    坐我隔籬個女同學成日都好大頭蝦,啲人覺得佢好白痴,但係我覺得佢夠天然呆好可愛。