Owling - What is it?

I've said it before and I'll say it again, the internet is a strange place!
You may remember a post I did a few months ago about a craze sweeping the internet called planking, (you can read the post by clicking here).
In essence you had to lie down as stiff as a plank and then up load a picture of your self doing it to a site such as Facebook to share with all your friends. The weirder the place you did it in the better. Well this craze has now led on to a new internet fad called owling.