àm-khang-á暗空仔

unlicensed prostitute

unlicensed prostitute; secret business deal

English Wiktionary, “暗空仔” (CC BY-SA 4.0) — https://en.wiktionary.org/wiki/%E6%9A%97%E7%A9%BA%E4%BB%94 · confidence: Medium (Wiktionary)