Stan and Francine in “Love, AD Style”

Stan

Here's my next car Francine, the new Hummie C.O.K. Guzzler. It runs on carbon, oxygen and potassium.

Francine

Oh, yeah. The chemical symbol for potassium is K. Boy, my chemistry's a little rusty, but wouldn't it run cleaner if they added another carbon molecule before the potassium? Then it would guzzle C.O.C.K.

Stan

I don't know what you're talking about.