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Jyutping baan6 saai3 haai5
Pinyin bàn shài xiè

Definitions (CC-CANTO)
  1. verb; literally: one acting as a crab; run amuck like a crab; describe one to act capable when acutally not
Definitions (粵典–words.hk)
  1. 動詞
    無料​扮​有料​;​扮到​蝦​蝦​霸霸​,​好​有​架​勢​嘅​樣​;​全句​係​「​小蟹​柳​,​扮晒​蟹​」
    to act as if one is powerful; literally: to act like a big crab
    • 佢呢份工返唔夠半年,就響度扮晒蟹,叫啲遲過佢入職嘅人做師弟。
      佢呢份工返唔够半年,就响度扮晒蟹,叫啲迟过佢入职嘅人做师弟。
      Having joined the company for only half a year, he acts as an old prick and calls the new joiners as freshmen.
Examples (粵典–words.hk)
  1. Cantonese
    佢呢份工返唔够半年,就响度扮晒蟹,叫啲迟过佢入职嘅人做师弟。
    佢呢份工返唔夠半年,就響度扮晒蟹,叫啲遲過佢入職嘅人做師弟。
    • Having joined the company for only half a year, he acts as an old prick and calls the new joiners as freshmen.