When Joseph Met Lori and Made Out with Her in the Janitor's Closet - S13-E23
Continuity mistake: After Dale pours cereal into a large bowl for cereal night extreme, he removes three boxes of cereal out of the cabinet and we see the empty shelf over the paper towels, but as Joseph stomps out of the kitchen there are boxes on that shelf. Then the appearence of at least one of the cereal boxes changes on the table. Also, funny how Dale pulls the mixer out of the large bowl and turns in on, but its cord is not plugged in.
Answer: If you are talking about the "Thou shalt not do this, thou shalt not do that" song, I'm not sure if a song like that actually exists. Green Day, the guest voices on the episode, might have just been improvising to keep their appearance from being too obvious.