In this game, one kid helps others to gag to stop the flow of oxygen and blood to the brain. The practice carries on until another person is on the threshold of passing out. In this scary game blood immediately flows back to the brain and produces a fleeting feeling of being high which is equal to what drugs do.
Nowadays kids make their lips bigger by using bottle sucker technique. Which result in blood circulation problem or damage the tissues.
Teenagers use Vodka candies but they do not know that this could lead to severe alcohol poisoning.