Charratte is used mostly as a exclamatory word. Besides, often it is used to describe a happening as the best one. It is used as a synonym of "to hang out". Used both in slang Bengali and slang English.
Used in Santiniketan

A cultural and aesthetic mind-state that prioritizes making money, even as an “underground” or “radical” creator. The work isn’t made for money, but it’s the money that matters the most.