They hanged him for murder and buried him in an unmarked grave. When they came back the next day, the whole cemetery was missing!

Bart

(at therapy)
Apu: He used to rob me two, three times a week. Now, I'm lucky if I get it once a month.
Snake: He never initiates it; I have to do all the work. He just stands there.

Bart: Years ago, Stanley DeGroot was a cook here at school. All the kids made fun of him because he never graduated from college.
Kids: Stanley, Stanley, no degree! Two credits short at MIT!

They say that Dark Stanley will kill you, then go wee-wee in your skull.

Milhouse

Skinner: Simpson, I know you're behind this! Well, you are going to get some counseling from the school psychologist!
School Psychologist: DARK STANLEY'S GONNA EAT MY BRAINS!
Superintendent Chalmers: Or from a qualified professional.

Young Carl: I wish for world peace.
Young Barney: I wish for world war.
Young Carl: That would be cooler.

Homer: Oh! This is Eduardo. He's the pool boy. He thinks he's an angry old rich man.
Mr. Burns: I am an angry old rich man!
Homer: (whispers) That's the pool chemicals talking.

Homer: I do open-casket caricatures. (looking at a man in a casket) Did he have any hobbies?
Widow: Get out of here!

Homer: (to Marge) All those years I was dreaming of other things, I was actually doing what I really wanted: hanging out with my family, drinking with my friends, making friends with my family and hanging with my drinking.

Manure for sale!

Homer

Declan Desmond: (to Homer and Marge) Are you two considering children?
Homer: Pfft. Kids? No way. You won't see a couple of rugrats tying me down.
(Cut to eight years later, Homer and Marge with baby Bart and Lisa)
Homer: You better not put this shot after the one where I said I won't have kids. That would be a devastating edit.

Marge: Homer! Don't kill the foreign man!
Homer: Relax Marge. I wasn't going to kill him.
(Knives drop out of Homer's shirt, and pants.)

The Simpsons Season 18 Quotes

(On the way to school, Otto stops the bus and offers Metallica a ride; their tour bus has broken down.)
Otto: So what are you waiting for? Hop in.
James Hetfield: (Chuckles) Hop in what?
(The school bus peels away with Bart at the wheel.)
Bart: Look at me, I'm Otto! I'm a hundred years old and I drive a school bus!
Otto: Oh, man. Maybe me and Metallica can go splitsies on a cab.
(Hans Moleman slowly drives by in a pickup truck, with Metallica and their gear in the bed of the truck.)
Kirk Hammett: Hey, loser, we got a ride from a real fan!
Hans Moleman: I used to sleep with Lars' grandmother.
Robert Trujillo: Never listen to our music again!
(Hans Moleman pulls away as Metallica plays an instrumental from the song, "Master of Puppets.")

Wow, your paintings have brush marks. (Gasps) And your statues have weiners!

</i> Homer