骨蟲 [－虫]

Jyutping gwat1 cung4
Pinyin gǔ chóng

Definitions (CC-CANTO)
  1. regular customer of massage parlors
Definitions (粵典–words.hk)
  1. 名詞、俚語
    骨場​常客
    frequenter of message parlours; literally: bone bug