It is modern game created to ensure the absence of senseless dramas in group of friends or in an organization.
The rule is that, You cannot rant, or give out drama if it is senseless or not serious like for example if your friends suddenly hates you or if someone doesn't like you, it is not really a big deal but if it's like family lost or break ups it is exempted.

The game leader will be the one to weigh the intensity of the drama

Usually the punishment is that the one that dramas treats food for everyone like pizza or burgers.
April kept on ranting about one of her classmates hating her in the facebook chatbox which made Bob fed up and decided to play the Oshino Game.
by malandi March 13, 2016
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