o͘-bīn-chha̍t烏面賊

one who deceives customers in secret

one who deceives customers in secret; robber or bandit who blackens their face to avoid identification

literal

English Wiktionary, “烏面賊” (CC BY-SA 4.0) — https://en.wiktionary.org/wiki/%E7%83%8F%E9%9D%A2%E8%B3%8A · confidence: Medium (Wiktionary)