Pepperoni Pizza

Alright, listen up, you knucklehead! This joke is about the World Trade Center. Get it? It's a dark joke because, well, planes crashed into it. And the punchline is a play on words: they wanted a "plane" pizza, but they got a real plane instead. You probably think that this is insensitive to people with an IQ lower than your age, but it is what it is.