chalk line
📖 Definitions
noun
1. A standard of proper behavior.
2. A line made with chalk or a similar substance.
💬 Usage Examples
“‘They were tough, but they were fair. In other words, they made us walk the chalk line. But it did not hurt us one bit. We learned,’ Kissell said.” Dillon Carr; Former Educators, Students Say Goodbye to St. Florian School; Pittsburgh Tribune-Review (Pennsylvania); Feb 20, 2017.