Etymology: Its a word in South-Indian language Tamil. The word was made popular by the chartbuster song "Why this Kolaveri di?" that has got some 3 million hits on youtube within a week of upload. The word also stays on top of twitter India trends for more than 3 days in a row.
An old religion that believes that all religions are correct in their own ways and customs, and their divine rules apply to only them. i.e. Buddhists go to their afterlife., while Christians go to their own afterlife. Hindus don't go to Christian afterlife and vice versa.