The Tum Bohot Mast Kaam Karta Hai meme originates from 2003 Indian film Munna Bhai M.B.B.S. In this Bollywood movie, Murli Prasad Sharma (the character played by Sanjay Dutt) says this dialogue to Maqsood (the character played by Surendra Rajan) when he hugged the latter for his 30 years of services to the hospital. The popular use of Tum Bohot Mast Kaam Karta Hai meme is to admire a person/thing for its usefulness.
