Be on somebody’s case
phrase
To frequently criticize, reprimand or nag someone.
His mom is always on his case about cleaning his room.
Often appears as...
- always on someone's case
- get on someone's case
Usage tips
Disapproving
Colloquial, Idiomatic
phrase
To closely observe or monitor someone.
The police have been on his case ever since the incident.
Often appears as...
- police on someone's case
- be on someone's case about
Usage tips
General, Idiomatic
phrase
To frequently criticize, reprimand or nag someone.
His mom is always on his case about cleaning his room.
Often appears as...
- always on someone's case
- get on someone's case
Usage tips
Disapproving
Colloquial, Idiomatic
phrase
To closely observe or monitor someone.
The police have been on his case ever since the incident.
Often appears as...
- police on someone's case
- be on someone's case about
Usage tips
General, Idiomatic
Definition 1 of 2
Pro Tip 1/3Negative Implication
Implies irritation or annoyance towards someone's behavior or action.
Stop being lazy with your chores, or I'll be on your case.
Pro Tip 2/3Informal Usage
Used in casual situations, rarely in a professional or formal context.
If you keep arriving late, your friends might get on your case.
Pro Tip 3/3Personal Pressure
Indicates personal pressure rather than constructive criticism.
Don't be on my case, I already know I made a mistake.
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