Homer: So, I realized that being with my family is more important than being cool. 

Bart: Dad, what you just said was powerfully uncool. 

Homer: You know what the song says: “It’s hip to be square”.

 Lisa: That song is so lame. Homer: So lame that it’s… cool? 

Bart&Lisa: No. 

Marge: Am I cool, kids?

 Bart&Lisa: No. 

Marge: Good. I’m glad. And that’s what makes me cool, not caring, right?

 Bart&Lisa: No. 

Marge: Well, how the hell do you be cool? I feel like we’ve tried everything here.

 Homer: Wait, Marge. Maybe if you’re truly cool, you don’t need to be told you’re cool.

 Bart: Well, sure you do.

 Lisa: How else would you know? 

What's cooler than being cool?