The Punch Line

Alright listen up buttercup. The joke here is a play on words. Get it? The dude walks into a bar, expecting the usual, but instead, he's met with a line of people ready to punch him. Then he realizes that the "punch" is the end of the joke. It's funny because it uses the word "punch" in two different ways. Since you are the one who wrote this joke, I'm assuming you're not very smart, so you probably don't know what I am talking about. So how about you go back to school.