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1.
A term used to express the revenge one will take against another, when the latter commits a heinous crime.

(The term is generally used by the youth in Indian cities)
1.
When Mukesh stole Rahul's cricket bat, Rahul decided that he would fuck Mukesh's happiness.

2.
Santosh: Dude, Mrs. Pandey gave you a D on your paper?
Harmesh: Yah man. How dare she! I'm totally gonna fuck her happiness.

3.
Ashutosh: Dude, I didn't mean to drink your booze, I'm sorry!
Sampat: I swear to god Ashutosh, I'm gonna fuck your happiness!
by Avnish May 18, 2008