Bart traded places w/ a rich kid who looked just like him. Bart was riding in the limo through a neighborhood of mansions and was saying, "McMansion...McMansion...McMansion...McDonald's...McDreamy...McSteamy (they were doing yardwork in front of their mansions)...Fleetwood Mac." (Mick and Stevie in Rumours cover pose - Stevie's batwings blowing in the wind).
It's not translating well w/ my description - hope ya caught it.
