The statement is merely a euphemism for Driving in Kuwait!
Flashing, to the right.
I'm more of a flasher myself, I detest the noise of the horn, it really is quite annoying! The highlights on the other hand are efficient, cause less pollution, and overall, are easier on the arm!
However, there are times that warrant honks. And some people are quite, insulted if you honk at them, they take it personally. I have met such people. You honk at them to make them aware that they are driving recklessly (my case a guy was trying to rush from behind me to my right, and I was signaling right), they take it as an insult, and then start cutting you off. Been there, done that.
Highlights also! Try driving down one of the Ring Roads on the left-lane, you are bound to find a slow poke in the fast lane, hit them with a few highlights, and they persistently stay in the lane, not only that, but they turn on their left signal, meaning go around.
I used to have a habit of, when it suited me, to let people pass, knowing full well that there was someone a bit ahead of me, then the minute I take the middle lane, speed up, and box said car inside. Effective, yes?
So, which are you?