The "Why so serious?" meme originates from a memorable quote by The Joker, played by Heath Ledger, in the 2008 film The Dark Knight. In a famous scene, The Joker tells a chilling story about how he got his scars, repeatedly asking "Why so serious?" as he recounts the traumatic incident. This line quickly became iconic and was widely used in internet memes, often paired with images of The Joker or people with his makeup drawn on. The phrase is typically used humorously or sarcastically to question someone who is being overly serious or uptight. The meme gained early traction as part of a marketing campaign before the movie’s release and later flourished online through fan art, remixes, and viral videos, including beatbox remixes that have kept the meme popular even years later.
In essence, the meme is both a reference to a striking cinematic moment and a cultural way to tell people not to take things too seriously or to mock overly earnest behavior.