pòaⁿ-tháng-sai-á半桶師仔

smatterer

smatterer; amateur; dabbler (especially an apprentice)

English Wiktionary, “半桶師仔” (CC BY-SA 4.0) — https://en.wiktionary.org/wiki/%E5%8D%8A%E6%A1%B6%E5%B8%AB%E4%BB%94 · confidence: Medium (Wiktionary)