[have] it in for {sb}
1
to deliberately keep causing problems for someone or criticizing them
The idiom "have it in for someone" is rooted in the idea of holding a grudge or bearing ill will against a specific person. While its exact historical origin is uncertain, it likely developed from the broader concept of personal or ongoing conflicts. It is used to describe instances where someone seems to have a persistent negative attitude or intention toward someone else, often resulting in antagonistic behavior or actions.
- Ever since that argument at the office last week, it seems like the boss has it in for Sarah.
- I don't know why she has it in for me, but she's been giving me the cold shoulder all day.
- It's clear that the coach has it in for Tom because he keeps benching him for no apparent reason.
- Don't cross paths with Alex; he has it in for anyone who questions his authority.
- The teacher always seems to have it in for Mark, giving him extra homework assignments for no good reason.