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Jyutping pek3 teoi2
Pinyin pī tuǐ

Definitions (Wiktionary)
  1. verb, figuratively, slang
    to cheat on one’s romantic partner
  2. verb
    to perform the splits
  3. noun
    trestle

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Jyutping pek3 teoi2
Pinyin pǐ tuǐ

Definitions (CC-CEDICT)
  1. to do the splits (gymnastics)
  2. (Tw) two-timing (in romantic relationships)
  3. Taiwan pr. [pi1 tui3]