BT

The bad trip is the full form of the word bt. This means whenever you give thassa(by mr.khanna) to someone else it is referred to as bt. This word was commonly used by the greatMr.babbar. This word is famous among the youth in Rajouri garden.

For eg. Your friend called you for some work and you rather went on a date with your bae. Then he will say babbar ne bt dedi.