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Jyutping jat1 bei1
Pinyin yī bī

Definitions (Wiktionary)
  1. adv, slang, vulgar
    An intensifier, used after 得 (de): (as) fuck
    • 好吃得一屄
      好吃得一屄
      hǎo chī de yī bī
      delicious as fuck
    • 窮得一逼
      穷得一逼
      qióng de yī bī
      poor as fuck
Examples (Wiktionary)
  1. Mandarin
    好吃得一屄
    好吃得一屄
    hǎo chī de yī bī
    • delicious as fuck