A show featuring the exploits of the Grim Reaper, forced into being the best friend of two children.

[Billy and Mandy have been discussing Billy's fear of clowns, which Mandy has called "pointless"]
Billy: Mandy, you have to believe me! The clowns want to take over and become the dominant species! They will
[shouts at the top of his lungs]
Billy: Destroy us all! Destroy us all! Destroy us all! Destroy us all! Destroy us all! Destroy us all!
Billy: [sitting at his desk in class with his fellow students]
Billy: Destroy us all!
Billy: [at the chalkboard, attempting to solve a math problem]
Billy: Destroy us all!
Billy: [at his locker in the hallway]
Billy: Destroy us all!
Billy: [In Biology class, dissecting a frog]
Billy: Destroy us all!
Billy: [on the swingset at recess]
Billy: Destroy us all!
Billy: [in the lunch line]
[calmly to the lunch lady]
Billy: I'll have the chicken
Billy: [sitting at the lunch table with Mandy and Irwin]
Billy: Destroy us all!
Billy: [doing sit-ups with the other kids in gym class]
Billy: Destroy us all!
Billy: [in the Boy's bathroom, we see Billy's feet underneath a closed stall]
Billy: Destroy us all!
Billy: [getting off the bus with Mandy]
Billy: Destroy us all!
[he walks home off screen, still shouting]
Mandy: [annoyed] That's it!
[pours Grim, piece by piece, out of her backpack]
Billy: Why, Grim? Why do the good die young?
Grim: Well, usually because I get confused.
[repeated line]
Fred Fredburger: Yes!
Billy's Mom: Oh sorry, Billy. We weren't laughing AT you, we were laughing WITH you.
Billy's Dad: I was laughing AT you.
Mandy: [holding a knife and fork at the show's intro] If you really are what you eat, I should become you by morning.
Mandy: [on show intro] I missed you...
[pulls out a laser cannon]
Mandy: ... but my aim is improving.
Grim: One little, two little, three headless teddy bears. Four little, five little, six headless teddy bears. Seven little, eight little, nine headless teddy bears. Half a million to go.
Grim: [to irwin] Don't Make me go Evil on your...
Irwin: [interrupting] ... As I was saying...
Billy: [whispering] Hey, Irwin, you gots any gum?
Irwin: [looking into his backpack] Well, I have a plum, a drum, even a tiny chum no bigger than my thumb... but no gum, yo.
Mandy: [In the Intro] It is not enough to succeed.
[Dark voice]
Mandy: Others must fail!
Billy: Ask me a question. Give me a challenge.
Grim: Who developed the theory of relativity?
Billy: That is a trick question, Grim; everyone knows fruit bats are mammals.
Hoss Delgado: Give it to us straight, Goodburger. Is our little Remus...
Mandy: Billy.
Hoss Delgado: ...Billy, on the bullet train to Smartsville, or is he riding the slow pony to the rubber forest?
Grim: Why does the fate of humanity always end up in the hands of an idiot?
Hector Con Carne: I'm not even on this stupid show any more!
Mandy: [on show intro] This statement is false!
[regarding Eris, who is kissing Hoss Delgado]
Grim: I can't believe I used to have a crush on her, back when she was in that "Valley Girl" phase.
Mandy: I think we'd all like to forget that phase.
Mandy: [on show intro] Evolution takes no prisoners.
Mandy: [on show intro] Do what thou wilt shall be the whole of the law!
Billy: I'm a poet, and I didn't even know that I had the ability that I might be!
Eris: Who wants punch? Oh, I do!
[grabs the punch bowl and sticks her face in it]
Eris: Open the pod bay doors, Hal!
Eris: Care for some trout?
[hits Principal Goodvibes with a trout]
Principal Goodvibes: Um... why did you hit me in the face with a trout?
Eris: Because the mackerel wasn't fresh.
Jeffrey the Spider: Hey, Dad.
Billy: [frightened] Get away!
Jeffrey the Spider: I've got some big news to tell you. I just laid thousands of eggs. You know what that means?
Billy: Aah!
Jeffrey the Spider: Yep, you're going to be a grandpa!