唔係猛龍唔過江 [－系－龙－过－]

Jyutping m4 hai6 maang5 lung4 m4 gwo3 gong1
Pinyin wú xì měng lóng wú guò jiāng

Definitions (粵典–words.hk)
  1. 語句
    形容​若非​有​真材實​料​嘅​人​，​係​唔​會​去​外界​闖​蕩​，​使出​本事
    a person makes a life for himself away from home only because he has the wits for it

唔係猛龍唔過江 [－系－龙－过－]

Jyutping m4 hai6 maang5 lung4 m4 gwo3 gong1
Pinyin n2 xì měng lóng m2 guò jiāng

Definitions (CC-CANTO)
  1. one capable would surely venture into other fields for more achievements (slang)