
Overstep the mark/line
Social Boundaries
This phrase is often used when someone violates unspoken social rules or etiquette.

He definitely overstepped the mark by joking about her divorce.
Disapproval Implied
Using 'overstep the mark' implies that the speaker disapproves of the behavior.

She overstepped the mark with her comments, and the audience was not pleased.
Cultural Sensitivity
What counts as overstepping the mark can vary greatly between different cultures.

In their culture, arriving unannounced is seriously overstepping the mark.
WordUp Chrome Extension
As you browse the web instantly look up words you don’t know.
Get Chrome Extension