Off the top of my head:
"Let that be a lesson Lisa. Never trust anybody." - Homer J.
"It's a pornography store. I was buying pornography." - Homer J.
"Can you believe Flanders threw away a perfectly good toothbrush??" - Homer J.
"Smithers, get me out of here. There are too many fat, ugly children here." - Burns
"You can say that we ate Uter, and he's in our stomachs right now. HAHAHAHAHAHA! Whoops, scratch that." - Skinner
Burns & Smithers in the park hiding drums of waste: "I'm afraid we've run out of room, sir." - Smithers "What? That tree held nine drums." - Burns ------------- G-Hound
'We have enough youth. How 'bout a fountain of smart?'