Death of a Propane Salesman (2) - S3-E1
Continuity mistake: When Peg is on the phone with Buck the wall telephone has a long cord, then she hangs up the receiver on the wall, but in the following shot both the receiver and its long cord are weirdly missing from the wall phone. (00:05:15)
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.