To be baffled or bewildered (literally “to be pinched by a fox”); to feel puzzled as if tricked by something inexplicable.
彼の説明を聞いていると、まるで狐につままれたようで理解できなかった。
As I listened to his explanation, I was completely baffled and couldn't understand it.
昨夜の出来事は狐につままれた気分だった。何が本当かわからない。
I felt bewildered by last night's events. I can't tell what is true.
彼女は急に態度を変え、周りの人たちは狐につままれたように見えた。
She suddenly changed her attitude, and the people around her looked bewildered.