It's just like bukkake, but it's specific to a group of 5 or 6 guys busting a nut on an Indian woman. If you can pull off a Calcutta Creampie followed by an Indiana Icepick you're the man!
When I went to India with my colleagues, we hired a hooker on the streets of Bombay. We took her back into the room and the 6 of us doused her with a Calcutta Creampie. The dark Indian chick Nirmala looked like an albino.