It started in Central Java, an Indonesian province east of Jakarta. Groups of youngsters stand by the side of the road, shouting and holding signs reading, "om telolet om!" — a phrase The Jakarta Post says loosely translates to "Driver, honk, driver!"
A video of children in the town of Jepara was posted on Facebook late last month and now has more than 2 million views. Many of the comments are along the lines of "it's a simple game, but it makes them happy."
So why are the kids clamoring for bus drivers to honk?