Family Circus: These are some of my dad's drawings. We call it "POP art".

Billy seems to be fully aware that he is making a pun. As such, it stands to reason that he knows what pop art is. This is rather impressive for a seven-year-old and yet further proof that he is by far the smartest Keane.

In fact, I can only assume that Billy, though pretending to be friends with the token black kid, is instead simply trying to lure him into his cult as the first non-Keane-child member. Puns are probably not the best way to do this, of course, but Billy's still learning. Soon he'll break out one of those aphorisms, and token black kid will be putty in Billy's pudgy little hands.