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Jyutping bat1 tung3 bat1 joeng5
Pinyin bù tòng bù yǎng

Definitions (CC-CEDICT)
  1. lit. doesn't hurt, doesn't tickle (idiom); sth is wrong, but not quite sure what
  2. fig. not getting to any matter of substance
  3. scratching the surface
  4. superficial
  5. perfunctory
Definitions (粵典–words.hk)
  1. x
Definitions (Wiktionary)
  1. phrase, idiomatic
    hesitant and equivocal in attitude (when dealing with a matter)
    (syn.) 不疼不痒, 不疼不癢
  2. phrase, idiomatic
    not getting to the substance of the matter; perfunctory; superficial
    (syn.) 不疼不痒, 不疼不癢
Examples (Tatoeba—Mandarin-English)
  1. Mandarin
    一百万日圆的罚金?根本不痛不痒啊!
    一百萬日圓的罰金?根本不痛不癢啊!
    yì bǎi wàn rì yuán de fá jīn ? gēn běn bù tòng bù yǎng a !
    • A one million yen fine? That's nothing to me.