WOW?

I live in the New York City area and for the past few months I’ve been spotting the word (or acronym?) “WOW” on the sides of buildings and cars. At first, I thought it was the “tag” of one of the local grafitti artists, but now it’s been showing up on more reputable stationery such as bumper stickers. Obviously, this is meant to get the observer to ask the obvious question as to what it stands for (as in the case of John 3:16 or WWJD). So…what the heck is this? Is someone trying to gain my salvation by spray painting “WOW” into the side of the local ShopRite?

Anyone have a clue what WOW is?

JoAnn