What does "背手负鼠" mean?

2026年上半年爆火的表情包：一只北美负鼠误闯民宅，被堵在窗边时双脚站立、双爪背在身后，弱小潦草却自带「长者姿态」，被网友用来表达各种微妙情绪。

ENThe 2026 viral opossum meme: a startled opossum standing upright with paws behind its back — scrappy yet oddly dignified, used for all kinds of moods.