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Jyutping zi1 m4 zi1 deng6 aa3
Pinyin zhī n2 zhī dǐ ya

Definitions (CC-CANTO)
  1. do you know what you are doing (said in a hostile tone) [colloquial]
Examples (粵典–words.hk)
  1. Cantonese
    你知唔知埞呀?咁同我大佬讲嘢?
    你知唔知埞呀?咁同我大佬講嘢?
    nei5 zi1 m4 zi1 deng6 aa3? gam2 tung4 ngo5 daai6 lou2 gong2 je5?
    • Do you know your own place? How dare you talk to the boss with such tone?