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Jyutping mou5 jim2 gai1 lung4
Pinyin mǎo yǎn jī lóng

Definitions (CC-CANTO)
  1. wide open; unguarded; free access; open to all; to describe someone who speaks carelessly
Definitions (粵典–words.hk)
  1. 名詞、俚語
    比喻​成​可以​自由​來​去​出入​嘅​地方​;​亦​都​同​「​自​出自​入​」​組成​歇後語
    a place where you can come and go as you wish; literally: doorless chicken coop; forming a sandwich pun with 自出自入zi6ceot1zi6jap6
    • 邊個畀個衰人入嚟㗎?當屋企係冇掩雞籠呀吓?
      边个畀个衰人入嚟㗎?当屋企系冇掩鸡笼呀吓?
      bin1 go3 bei2 go3 seoi1 jan4 jap6 lai4 gaa3? dong3 uk1 kei2 hai6 mou5 jim2 gai1 lung4 aa4 haa2?
      Who let that bastard come in our home? You think it's a place that anyone can come and leave freely?
Definitions (Wiktionary)
  1. noun, Cantonese
    place where one can freely enter and exit
Definitions (Kaifangcidian)
  1. 亂說話的人 – 乱说话的人
  2. 嘴上沒崗哨的人 – 嘴上没岗哨的人
  3. 隨意出入 – 随意出入
  4. 出入自便
Examples (粵典–words.hk)
  1. Cantonese
    好多旧式大厦嘅街闸都冇上锁,尤如冇掩鸡笼。
    好多舊式大廈嘅街閘都冇上鎖,尤如冇掩雞籠。
    • Old building main gates are commonly unlocked, everyone can access freely.
  2. Cantonese
    边个畀个衰人入嚟㗎?当屋企系冇掩鸡笼呀吓?
    邊個畀個衰人入嚟㗎?當屋企係冇掩雞籠呀吓?
    bin1 go3 bei2 go3 seoi1 jan4 jap6 lai4 gaa3? dong3 uk1 kei2 hai6 mou5 jim2 gai1 lung4 aa4 haa2?
    • Who let that bastard come in our home? You think it's a place that anyone can come and leave freely?