Courage the Cowardly Dog is known by many to be a horror-comedy series. Just like some episodes tend to avoid the comedy part of its horror-comedy status, resulting in Nightmare Fuel, these episodes tend to avoid the horror angle of its horror-comedy status, resulting in hilarious moments. Here are some examples:
This exchange from "Courage in the Big Stinkin' City":
"Cajun Granny Stew", the whole thing plays like a Looney Tunes episode
The Cajun Fox has kidnapped Muriel and is getting away in a steamroller, so Courage tries to stop him with the old fake detour trick: he switches around a Road Closed sign so that the Fox will drive into a bunch of rocks instead of going the right way. The fox doesn't buy it, runs over the sign and Courage, and then immediately falls off a cliff.
"I'm rollin' this Granny in flour...makin' the dish of the hour..."
The plane scene, where the fox displays a Courage-worthy toothy scream-twice in the space of about 30 seconds.
Eustace reciting an exorcizing spell: "Hullabaloo, and howdy doo! Musty prawns, and Timbucktu! Yeltsy-by, and hibbety-hoo! Kick 'em in the dishpan! Hoo hoo hoo!!"
Even better, after Eustace learns this, he turns to the audience and repeats "'Kick 'em in the dishpan, hoo hoo hoo?'". He turns back to Courage who just shrug and when Eustace fails, Courage does the spell himself, who all but slurs the chant in dog Rs like Scooby.
"It would be lovely if I could have a cup... of... ...TEA!! And immediately after, Courage screams loudly, realizes what she said and calms down. It's funnier than it sounds.
Eustace tries insulting the Hunchback to leaving the table, and he just reads whatever Courage writes back as a comeback.
"And you sir are extremely... bald."
"Are you bald..? Yes."
"Muriel, he called me bald!" "Oh Eustace, you ARE bald."
"The Gods Must Be Goosey". Second only to "Cajun Granny Stew" as the funniest episode of the show.
"I am NOT his queen!"
Muriel: "The Goose and Eustace's truck are getting married!"
(outside to a depressed Eustace.)
Eustace: I'm nothing without my truck! Come back to me, truck!
Everything after Muriel gets de-aged. The Macaroni scene in particular is epic comedy.
During the scene where Courage and Muriel are on a plane, Muriel runs up and down the aisle, arms spread apart, complete with airplane noises. Two people jump out of the plane, including the pilot, because they can't put up with her, anymore. Cut to Courage's completely deadpan expression, that can only be summed up into, "The things I do for love"
Crazy plunger lint lady: They're doin' terrrrrible thiiiiings over theeeere. (pause) But they ain't gettin' MY lint!
"It's Doc Gerbil's world, it's Doc Gerbil's world...." Courage's reaction to that song is hilarious.
The episode about the Sand Whale contains some rather hilarious moments. For example-
Eustace: (Sliding around inside his chair in the whale's mouth) Look, I found me chair!
Muriel: (Deadpan) Well, at least you're comfy.
Eustace: (Now inside a fridge inside the whale's mouth) I found the refrigerator!
"I'm glad everything worked out okay." "But the whale's got me Ma." Beat. "(Smiles) I'm glad everything worked out okay."
Why did the whale need an accordion anyway? Because he was in an accordion choir that was just finishing up before he got his and did the finishing notes.
The episode where the computer gets a virus and Courage has to go inside is pure hilarity. Especially when Muriel accidentally clicks on an adult website. Courage's reaction is priceless.
The crazy error messages that appear when the computer first gets infected. "6x4=BOB!"
Anything the computer snarks is simply hilarious:
Computer: If Johnny has three apples and Davie has two apples, why don't they just shut up and eat?
King Ramses's second curse: A really annoying song. KING RAMSES! The man in gauze, the man in gauze! Considering that the first curse is flooding and the third is locusts, this is kind of Arson, Jaywalking, and Murder.
From the same episode: "Judgin' by the markings and the obvious age of the relic, I'd have to say it's..... GARBAGE!"
"Garbage! From King Garbage, of the Garbage Dynasty!"
In the flashback episode, Courage was looking for his parents, and when he opened a door, a woman was taking a shower and screamed. Courage promptly shuts the door, but a few seconds later, he opens it again.
The entire episode of "Courage Meets The Mummy".
"*Sobs* THAT'S ME FAVORITE SHEET!"
The Bigfoot episode. Courage is worrying over the danger Muriel is in, and has a fantasy bubble of Bigfoot punting Muriel like a football, across the length of the field, and through the goal posts.
A moment in "The Curse of Shirley", in which Eustace must sleep on the roof, then proceeds to lose his glasses. As Eustace's false perception forces him to believe he is seeing monsters, Courage makes his way up on the roof to bring him a blanket. When Eustace envisions Courage as one of the monsters, he attacks him, then throws him off the roof. This manages to stand out significantly because Courage, being a big screamer, shrieks when Eustace approaches him, but in Eustace's eyes, all he sees is a creature screaming like a small dog.
The entire episode of "Farmer-Hunter, Farmer-Hunted".
Family Business as a whole was one of the funnier episodes of Courage. Basil's switches from 'hardcore criminal' to 'loving family member' are so bizarre that even Muriel admits he's insane.
This sums up the episode:
Basil: "Nigel, why are you tyin' up Mama Mashed-Potatoes and Uncle Twinkle-toes?"
(Courage, Muriel and Eustace stare blankly).
When the group is having dinner, Eustace, Courage and Basil are actually dancing while they wait for Muriel to finish cooking. When she comes out with a bowl of mashed patatoes and sets it on the table, Eustace goes flying into it face-first.
The whack-a-mole scene from Night of the Weremole. And the Mood Whiplash it caused only added to the humor.
And to think Eustace can't get any points in that scene because Weremole Muriel keeps on dodging his blows. I like to say that's not fair!
In the shadow episode, Eustace has been convinced that Courage is making fun of him by the Living Shadow. He chases Courage to the kitchen and starts throttling him, shouting "Say 'uncle'!". Then Muriel dashes in in full Mama Bear mode, One-Woman Wail in the background, as she nails Eustace with her rolling pin (off-camera). As she leaves the kitchen, Courage (who she's holding in her arms), quietly remarks "...Uncle?"
This quote from Klub Katz, showing Eustace's 'love' towards his chair, had me in stitches...
(As he's flung from the cruise ship and across the ocean) Eustace: No sir. Not gettin' outta' this chair.
While The House of Discontent was very scary, it did had some funny moments like Eustace's reaction when the family first meets the spirit of the harvest moon.
*Eustace: Would you look at that.
*Muriel: It's a floating head!
*Eustace: I was talking about that leaking pipe.
The argument between the floating head and Eustace is absolute gold.
*Eustace: 'Least I got arms and legs! You don't even have a neck! Hahaha!
*Floating Head: Get out of my face.
*Eustace: Make me!
The episode with the cursed library book. While the Transformation Sequence for Eustace and Muriel was pretty freaky, Courage's reaction was utterly hilarious. It's difficult to describe, but instead of his usual scream of terror, Courage can only respond with some weird visual gags that can only be described as a visual version of a Flat "What.".
"Robot Randy": Randy has finally been accepted amongst his destructive brethren as a useful robot for his skill as a wooden reindeer carver and gets a medal. Three seconds later:
Robot Randy: My name is Randy. I am the most powerful robot in the universe.
Eustace: That's it, I'm getting my mallet.
The ultimate showdown between Randy and Courage: A dance off!
Randy: It's nothing, just a wooden reindeer.
Eustace: You're right! You are a failure!
"What a waist of good wood!"
From "Courage the Fly":
Courage: (hitting a light bulb over and over) I dunno why I'm doing this, but I like it.
In one episode (I don't know which), Eustace is fixing up the henhouse when from out of nowhere a train plows through the henhouse while Eustace is still on it!
Courage screaming through his trumpet. It actually forms a mouth as he blows.
From The House of Discontent: "Hey! 1! 2! 3! 4! HAPPY BIRTHDAY!"
From Mission To The Sun, the scene immediately after Mustafa Al-Bacterius (a tiny space germ) takes control over Muriel.
Muriel: Birds! Eustace: Ah, yer seein' things. More turkey in a tube! Muriel: Halifax! Wicky-wicky-wicky, mambo time!
The multiple tests to find a cure for the jewel's invisibility causing powers in Invisible Muriel, preformed on Eustace by Dr. Vindaloo.
In "The Swindlin' Wind", Muriel, as a one-man band, swindling Eustace out of his chair, his grandfather clock, and even the floor, which results in Courage getting hit by each one, but before she can swindle him out of anything else, Courage covers her mouth to stop her and avoid getting hit by anything else.