draw the line (at something)
to allow or accept something up to a particular point, but not beyond it

[TahlilGaran] Dictionary of Contemporary English ▲

draw the line
to separate one thing from another.
It's not clear where this author draws the line between fact and fiction.

[TahlilGaran] English Idioms Dictionary ▲

draw the line
to set a limit about what will be done or discussed
The union was willing to compromise on the salary issue but they drew the line at talking about health benefits.

We have to draw the line somewhere to limit the costs of the party.

[TahlilGaran] English Idioms Dictionary ▲

draw the line
See: DRAW A LINE.
{v. phr.}
1. To think of as different.
The law in this country draws a line between murder and manslaughter.

Can you draw the line between a lie and a fib?

2. To set a limit to what will be done; say something cannot be done.
We would like to invite everybody to our party, but we have to draw a line somewhere.
- Often used with "at".
Mrs. Jones draws the line at permitting the children to play in their father's den.

People fighting for their freedom often do not draw the line at murder.

[TahlilGaran] English Idioms Dictionary ▲