siâm-thuè蟬蛻

cicada slough

cicada slough; to free oneself; to extricate oneself from

English Wiktionary, “蟬蛻” (CC BY-SA 4.0) — https://en.wiktionary.org/wiki/%E8%9F%AC%E8%9B%BB · confidence: Medium (Wiktionary, Hokkien)