疯狂猜灯谜一只刺猬打一成语

Answer 1

芒刺在背 ( máng cì zài bèi )
解释
芒刺:指植物茎叶、果壳上的小刺或谷类壳上的细刺。如同有芒刺扎在背上。形容内心惶恐，坐立不安。(形容坐立不安的样子) feel prickles down one's back -- feel nervous and uneasy; in a most embarrassed and uncomfortable position; as a thorn in one's flesh; like having prickles on the back; feeling uncomfortable; on pins and needles
出处
《蒲柳人家》:他本是个整天跑野马的孩子，从早到晚关在家里，难受得屁股下如坐针毡，身上像芒刺在背。

Answer 2

应该是不可捉摸，刺猬全身是刺嘛

Answer 3

那就是芒刺在背。