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Jyutping hau2 faai3 sam1 zik6
Pinyin kǒu kuài xīn zhí

Definitions (CC-CEDICT)
  1. see 心直口快[xin1 zhi2 kou3 kuai4]
Definitions (Wiktionary)
  1. phrase, idiomatic, uncommon
    Synonym of 心直口快 (xīnzhíkǒukuài, “outspoken and straightforward”).
    (syn.) 心直口快