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Jyutping dak1 go3 joeng2
Pinyin dé gè yàng

Definitions (粵典–words.hk)
  1. 語句
    外表​畀​人​感覺​好​勁​,​其實​無​實力
    said of someone who seems powerful or rich but who lacks real substance.
  2. 近義詞
    虛有其表

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Jyutping dak1 go3 joeng2
Pinyin de gè yàng

Definitions (CC-CANTO)
  1. all looks with no substance; all show and no substance [colloquial]