Draw a line in the sand.
Set a definitive limit.
The idiom "draw a line in the sand" refers to setting a clear boundary or limit, beyond which one will not tolerate or accept further actions. It originates from an old practice where a line was literally drawn in the sand, and crossing it was a challenge or defiance. Today, it is used more figuratively to indicate a point beyond which one will not proceed or allow something to continue. It's about sticking to your principles and making clear where you stand on an issue.
Example Sentences
Draw a line in the sand.
Set a clear boundary.
She decided to draw a line in the sand and refuse further work.
She decided to set a clear boundary and refuse further work.
By drawing a line in the sand, he made it clear what he wouldn't tolerate.
By setting a clear boundary, he made it clear what he wouldn't tolerate.
