I've watched the Simpsons since Tracy Ulman, but I love those one-liners... feel free to add your own [apologies in advance for those that are kinda off in exact quotes]
Ralph: "Me fail english? That's un-possible!" "Hi Super Nintendo Chalmers"
Chief Wiggum: "No, you got the wrong number, this is 9-1-2" "I could picture the quarter pound, but with cheese?"
Homer: "Communism works, in theory"
Milhouse: "Thanks weekend dad!"
Moe: "Hi. Is this the listen lady? Well, Listen lady..."
..and so fourth...
CeAsE