Answer:
To establish a figurative boundary that someone or some group refuses to cross or beyond which no further advance or compromise is accepted.
Explanation:
I don't mind my roommate being a bit messy, but leaving dirty dishes for me to clean up is where I draw the line!
2. To clearly separate or create boundaries for two things.
If you're going to work closely with your wife, you really need to draw the line between your professional life and your personal life.
