The phrase "Why This Kolaveri Di?" comes from a popular Tamil song from the 2012 film "3". The term "Kolaveri" means "murderous rage" or "killer rage" in Tamil. In the context of the song, it is a playful expression used by a heartbroken young man asking a girl why she has this "killer rage" or anger against him after rejecting his love. The song uses broken English and Tamil slang (sometimes called "Tanglish") to portray the emotions of someone experiencing love failure, often referred to as a "soup boy" in Tamil slang, meaning a young man dealing with heartbreak. The word "Di" is a casual and informal way of addressing a woman in Tamil. So, "Why This Kolaveri Di?" roughly translates to "Why this murderous rage, girl?" but it is meant humorously rather than seriously. The song became very popular as it resonates with many youth going through similar feelings of love failure and heartbreak, expressed in a quirky, light-hearted manner.