Gebuk Bantal

Keep yourself off the water!

"Gebuk Bantal" — literally translated to "Pillow Thump", is one of the legendary competition held on Independence Day. The competition is played by two people, who will straddle a log above a river or a pond. Then they both try to knock each other out off the log by hitting them with a pillow. 

The winner is the one who managed to keep themselves on the log till the end.