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Jyutping tai3 gwong1 tau4
Pinyin tì guāng tóu

Definitions (CC-CEDICT)
  1. to shave the whole head clean
  2. crushing defeat
Definitions (Wiktionary)
  1. verb, verb-object
    to shave the whole head clean; to shave one's head
  2. verb, figuratively, humorous, verb-object
    to make someone suffer a humiliating defeat; to win a game where the opponent scores zero
Definitions (Kaifangcidian)
  1. (沒有對應漢語詞彙)
Examples (粵典–words.hk)
  1. Cantonese
    哗,你剃光头呀?乜咁激啊?
    嘩,你剃光頭呀?乜咁激啊?
    waa3 nei5 tai3 gwong1 tau4 aa4? mat1 gam3 gik1 aa3?
    • Wow, you shaved your head? That's pretty extreme!