Definition: Doing something for a very long time without result, normally associated with talking or arguing a point.
Example: Jeff argued with his girlfriend until he was blue in the face, but she would not admit that Predator is the greatest movie ever made.
As it is used mostly in regards to heated conversations, it is assumed ‘blue in the face‘ refers to the speaker running out of breath. To the point where you have so little oxygen in your system that your face takes on a bluish tinge.
Iddy has some advice. Next time you are having an argument, don’t forget to breathe. That way, you’ll avoid this potentially embarrassing condition.
He really shouldn’t be handing out this kind of advice. After all, he’s always green. That’s hardly a good look. In fact, blue might be an improvement.