
I, you, etc. can’t take somebody anywhere
Social Embarrassment
The phrase implies the person’s behavior is socially unacceptable, making others uncomfortable or embarrassed to be with them.

Every time we go out, she speaks so loudly. I can't take her anywhere!
Light Humor
Sometimes used in a joking manner among friends to playfully criticize someone's minor social blunders.

You spilled your drink again? I can't take you anywhere!
Not Literal
It's usually an exaggeration and doesn't mean the person will literally never be taken to social events.

You keep mispronouncing the waiter's name - I can't take you anywhere!
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