If you know what's good for you Meaning in English
expression
Definition
Used to warn or advise someone that they should do something (or avoid doing something) for their own benefit or safety, often with a sense of urgency or mild threat.
Usage & Nuances
Informal and slightly threatening; often used by adults, in movies, or between friends to warn of consequences. Can sound humorous or serious depending on tone. Not literal — about avoiding trouble or bad outcomes.
Example Sentences
You should listen to your doctor if you know what's good for you.
basic
You'd better study for the exam if you know what's good for you.
basic
Leave him alone if you know what's good for you.
basic
I'd back off now if you know what's good for you.
natural
Trust me, just apologize if you know what's good for you.
natural
Walk away now if you know what's good for you.
natural