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Jyutping ngan3 ngan3 haa5
Pinyin zhèn zhèn xià

Definitions (CC-CANTO)
  1. to shake one's body or leg rhythmically [colloquial]
Examples (粵典–words.hk)
  1. Cantonese
    䟴䟴吓
    䟴䟴吓
    an3 an3 haa5
    • to wiggle one's body; physically unsteady