get into someone
phrasal verb with get verb uk/ɡet/ us/ɡet/ getting | got | got or gotten
支配(某人);使(某人)行为异常
If you do not know what has got into someone, you do not understand why they are behaving strangely.
I can't think what's got into him. He doesn't usually get so angry. 我真想不出他这是中了什么邪,他平时可不会气成这样的。