Fish Don't Fry in the Kitchen?

Q: Dear Dougo, what does "Fish don't fry in the kitchen, beans don't burn on the grill" from the Jefferson's Theme Song mean?

A: Doug kind of rambled around on this one, so Donovan had to pitch in with a coherent answer : The phrase means that they are going out to eat more often, now that they've 'moved on up.' So they don't cook as often in the kitchen.