勝哥 [胜－]

Jyutping sing3 go1
Pinyin shèng gē

Definitions (CC-CANTO)
  1. term of address for a stranger in a casino [colloquial]
Definitions (粵典–words.hk)
  1. 名詞、俚語
    賭場​客人​嘅​俗​稱
    a term of address for a customer in a casino