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Jyutping gon3 waa6
Pinyin gàn huà

Definitions (Wiktionary)
  1. noun, Taiwanese-Mandarin
    nonsense

幹話 [干话]

Jyutping
Pinyin gàn huà

Definitions (CC-CEDICT)
  1. (Tw) (slang) remark that sounds like it makes sense but is actually nonsense