South Park Watch Fishsticks I Need Some Help Figuring Out What This Comment Means From A South Park Episode.?

I need some help figuring out what this comment means from a South Park episode.? - south park watch fishsticks

Recently, I saw the episode "Fishsticks and saw the scene where Kyle Craig is to Cartman, that should'nt take any credit for the joke that Jimmy has arrived and the response was declared back to Kyle Craig:" Yes. And it would be a wagon wheel. "What is this comment: I have tried to resolve for some time, but I'm still is skeptical. I apperciate if someone can help me. Thank you.