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Jyutping wun6 sat1 zung1
Pinyin wán shī zōng

Definitions (Wiktionary)
  1. verb, verb-object
    to do a disappearing act; to hide oneself (as a joke)

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Jyutping waan4 sat1 zung1
Pinyin wán shī zōng

Definitions (CC-CEDICT)
  1. to hide oneself (as a joke)