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Jyutping ceoi1 hau2 kam4
Pinyin chuī kǒu qín

Definitions (CC-CANTO)
  1. to play harmonica
Definitions (Wiktionary)
  1. verb, figuratively, slang, verb-object
    to perform oral sex on a woman
  2. verb, literally, verb-object
    to play the harmonica
Examples (粵典–words.hk)
  1. Cantonese
    吹口琴
    吹口琴
    ceoi1 hau2 kam4
    • to play the harmonica
  2. Cantonese
    吹口琴
    吹口琴
    • to play harmonica
Examples (Wiktionary)
  1. Mandarin
    吹口琴
    吹口琴
    chuī kǒu qín
    • to play the harmonica