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Jyutping jat1 bat1 zou6 , ji6 bat1 jau1
Pinyin yī bù zuò , èr bù xiū

Definitions (Wiktionary)
  1. verb
    to be in for a penny, in for a pound; to go the whole hog

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Jyutping jat1 bat1 zou6, ji6 bat1 jau1
Pinyin yī bù zuò , èr bù xiū

Definitions (CC-CEDICT)
  1. lit. either don't do it, or don't rest (idiom)
  2. fig. if you do it at all, you may as well go the whole hog
  3. in for a penny, in for a pound
Examples (Tatoeba—Mandarin-English)
  1. Mandarin
    一不做,二不休。
    一不做,二不休。
    yī bù zuò , èr bù xiū 。
    • As well be hanged for a sheep as a lamb.