phiô-á-bō瓢仔帽

watermelon cap

watermelon cap (Qing-era skullcap worn by men)

English Wiktionary, “瓢仔帽” (CC BY-SA 4.0) — https://en.wiktionary.org/wiki/%E7%93%A2%E4%BB%94%E5%B8%BD · confidence: Medium (Wiktionary)