sió-tǒ͘-á小肚仔

pig urinary bladder

pig urinary bladder (also used jokingly to refer to that of a human)

English Wiktionary, “小肚仔” (CC BY-SA 4.0) — https://en.wiktionary.org/wiki/%E5%B0%8F%E8%82%9A%E4%BB%94 · confidence: Medium (Wiktionary)