雞數 [鸡数]

Jyutping gai1 sou3
Pinyin jī shù

Definitions (CC-CANTO)
  1. money owed for visiting prostitute
Definitions (粵典–words.hk)
  1. 名詞、黃賭毒
    叫​雞​嘅​費​用​；​叫​雞​之後未​找​嘅​數
    a charge for visiting a prostitute; money owed for visiting a prostitute