How did the phrase "to cross the line" come to be coined to mean to break a rule or a law or to commit an immoral act?

More Questions. Additional questions in this category.

• 

  What does this mean? "There is a dime in the back pocket and it is on heads!"
  by Cotton 201 on April 9th, 2009 | 10 people like this

• 

  In a non-fencing context, what is the correct usage of the french word 'Touche'?
  by Tonibee on May 29th, 2009 | 3 people like this

• 

  Why is "the pot calling the kettle black" a bad thing. I have a black fridge/toaster/microwave and I love 'em. What's the deal here?
  by RosieGHM Jetpacker on September 9th, 2010 | 2 people like this

• 

  What is the origin of the phrase "Step children to god"?
  by MrAccident on December 29th, 2011 | 1 person likes this

• 

  Are "Touched by god" and "Touched in the head" the same thing? And should you report them to the police?
  by Ombliss22 on February 6th, 2011 | 4 people like this

• More Phrases, T See only professionally researched Phrases, T questions