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Jyutping dat6 po3 tin1 zai3
Pinyin tū pò tiān jì

Definitions (粵典–words.hk)
  1. 形容詞、外來語、潮語
    形容​一樣​嘢​嘅​數​量​好多​,​或者​程度​非常​之高
    extremely, literally "piercing the sky"