ah-khak鴨殼

male Muscovy duck that has mated

male Muscovy duck that has mated (having feathers with no luster, considered inedible by local folk)

English Wiktionary, “鴨殼” (CC BY-SA 4.0) — https://en.wiktionary.org/wiki/%E9%B4%A8%E6%AE%BC · confidence: Medium (Wiktionary)