Some guy will post a picture of a pretty standard looking pepperoni pizza and say: "Imagine not living in new york." And then there's the whole bodega discourse, which is also funny. "For you non-new yorkers, let me explain: a bodega is not a corner store. It's a place where you can buy gatorade, toilet paper, AND eggs." Thank you sir for explaining that to a slack-jawed yokel such as myself.
Isn't San Francisco's the famous one even?
It also predates the one in NYC by like 50 years