What have we stopped noticing?
The things we say, do, and accept without thinking twice.
Look closer where it comes from, what it assumes, and the case for keeping it
What you mean by it
To set a firm limit on what you will accept or do.
What it's actually picturing
It pictures someone marking a boundary in sand and treating that line as decisive. The image makes a confrontation or challenge to the boundary the normal case.
What it takes for granted
A boundary can be made clear by drawing it, and crossing it can mark a meaningful change in what happens next.
Worth knowing
The phrase is often used figuratively in negotiations, policy, and workplace decisions. There is little else in the picture beyond a temporary boundary and the idea of crossing it.
The case for keeping it
It is concise and widely understood, especially when a decision really does involve a firm limit or non-negotiable point.
Say it plainly
Set a firm boundarySet a clear limitMake this a firm limit
Or have some fun
Mark the edge