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Jyutping fung1 seoi2 lou2 ak1 nei5 sap6 nin4 baat3 nin4
Pinyin fēng shuǐ lǎo è nǐ shí nián bā nián

Definitions (Wiktionary)
  1. proverb, Cantonese
    A fengshui master can fool or scam you for many years (e.g. around ten years)

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Jyutping fung1 seoi2 lou2 ngaak1 nei5 sap6 nin4 baat3 nin4
Pinyin fēng shuǐ lǎo è nǐ shí nián bā nián

Definitions (粵典–words.hk)
  1. 語句
    表示​自己​講​嘅​係​真​話​,​好​快​就​會證​實到​;​睇​埋風水​佬
    used to emphasise that one is telling the truth, "Would I lie to you?", literally "a fung shui master may trick you for ten or eight years"
    • 揾工呢啲嘢風水佬呃你十年八年,我做得你老豆又唔會點條黑路俾你行?
      揾工呢啲嘢风水佬呃你十年八年,我做得你老豆又唔会点条黑路俾你行?
      For your career choice, a fung shui master may trick you for ten or eight years, but I'm your father who won't tell you to walk along the wrong path.
Definitions (Kaifangcidian)
  1. 我不會騙你的 – 我不会骗你的

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Jyutping fung1 seoi2 lou2 ak1 nei5 sap6 nin4 baat3 nin4
Pinyin fēng shui lǎo è nǐ shí nián bā nián

Definitions (CC-CANTO)
  1. (literally: a Fengshui master may deceive you for only eight or ten years); time will tell; you will realise with time that I am telling you the truth; time will witness the truth; would I lie to you?
Examples (粵典–words.hk)
  1. Cantonese
    风水佬呃你十年八年
    風水佬呃你十年八年
    • means one is telling the truth, "a feng shui consultant may trick you, but I won't lie to you."
  2. Cantonese
    揾工呢啲嘢风水佬呃你十年八年,我做得你老豆又唔会点条黑路俾你行?
    揾工呢啲嘢風水佬呃你十年八年,我做得你老豆又唔會點條黑路俾你行?
    • For your career choice, a fung shui master may trick you for ten or eight years, but I'm your father who won't tell you to walk along the wrong path.