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Jyutping caai4 waa1 waa1
Pinyin chái wā wā

Definitions (粵典–words.hk)
  1. 副詞
    玩玩​吓​,​唔​認真​咁​參​與​,​但求​開心
    whimsical; not serious
    • 我哋柴娃娃去參加歌唱比賽。
      我哋柴娃娃去参加歌唱比赛。
      ngo5 dei6 caai4 waa1 waa1 heoi3 caam1 gaa1 go1 coeng3 bei2 coi3.
      We are joining the singing contest just for fun.
  2. 參看
    儕嘩嘩、柴娃娃

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Jyutping caai4 waa1 waa1
Pinyin chái wā1wa

Definitions (CC-CANTO)
  1. for fun; a group of people hanging out to have fun [written and colloquial]