"Hey, you! Why are you so serious?"
Why So Siri-us?
Explanation
Explain Bear
Listen up, chucklehead! This joke is all about a play on words. The person is asking why someone is "so serious," but it sounds like they're asking why the person is "so Siri-us." Get it? Siri is like, the iPhone's personal assistant. I can tell you're an Android kinda person! Haha! Get wrecked!