The episode starts with Beavis and Butt-head watching a horror film, when two kids trick-or-treating show up at their door. Mistaking them for handing out samples, Butt-head takes their candy and slams the door in their faces, and soon their father takes it back and beats them up, too. They decide to go out and trick-or-treat, but are dismissed twice for not wearing costumes.
First Butt-head suggests they dress up as ghosts. However, when wearing the white bed sheets, Beavis complains that the sheets smell funny. Butt-head reveals that they are his "special monkey sheets". Beavis knows exactly what he means. So he immediately reacts in disgust trying to take it off as Butt-head laughs. Then Beavis jokes around by putting on a winger shirt saying that he's going as a wuss and sings the song "Seventeen." This irritates Butt-head as he smacks Beavis to stop. Then finally, Beavis puts his underwear over his head and calls himself a nad. Butt-head pours melted cheese all over himself and calls himself Nachos.
They first approach a house where a kind man doesn't give them any candy. He instead gives them pamphlets for some scary reading. Next they approach Anderson's house, who is about to dismiss them when his old friend calls, and he leaves his living room. Beavis and Butt-head go inside, where Beavis starts eating all of the candy in the candy bowl. Butt-head demands he give him some too. But Beavis refuses to give him any and quickly eats more. Then Beavis gets hyper and transforms into Cornholio. Then another kid comes to the door saying: "Trick-or-treat". Beavis makes a vicious face to him and loudly screams at him and scares him away. Anderson comes back and kicks them out, and when another trick-or-treater comes to Anderson's door, Anderson yells at him, mistaking the child for Beavis and Butt-head. Beavis and Butt-head then wander down the streets until Todd nearly hits and beats up Beavis.
Todd puts Butt-head in the trunk of his car and drive to the Country and drops him off on the Crazy Farmer's farm. Beavis, resumes wandering around. The soon he encounters Stewart and his A.V. club friends. They are about to T P houses. Beavis' hyperactive Cornholio persona creeps them all out. He demands Stewart to give him his roll of T P. Stewart and his friends give him the T P and run off. Then Beavis stuffs some toilet paper up his crack and walks around with the roll of T P hanging from his shorts. He then runs into another young trick-or-treater. He demands that he give him his candy, but he doesn't want too. His Cornholio persona really creeps the boy's mom and dad out. So the boys parents persuade him to give him the candy and they all run off.
Eventually he winds up at the Country, and meets the crazy farmer, who is digging a hole. Beavis is next shown hanging from a meat hook. Just then, a zombified Butt-head and the crazy farmer walk in. They both pull out chainsaws and slaughter Beavis. Beavis screams his head off in fear and unbearable pain as the screen slowly turned red and ends.
- Tom Anderson
- Stewart Stevenson
- Todd Ianuzzi
- Unnamed Crazy Farmer
- While Cornholio (Beavis) is wandering around the graveyard searching for candy, a kid is dressed up as a Red Ranger from Mighty Morphin' Power Rangers (a cultural reference). The family gave up their candy and ran away. Similarly, a kid is dressed up as a White Ranger in an earlier scene in the episode.
- The 'Butt-O-Ween' title is a parody of the 1978 movie, Halloween. Interestingly enough, this special aired the same year as Halloween: The Curse of Michael Myers hit theaters a month before.
- This episode aired on the actual day of Halloween.
- Three days ago in the Beavis and Butt-head world was Beavis' birthday.
- In this episode, Cornholio finally gets some T.P. for his bunghole.
- A scene where Beavis wears Stewart's Winger shirt and says "I'm a wuss" before singing Winger's "Seventeen" appears in airings but not on the VHS or DVD releases.
Season 2: Scientific Stuff · Good Credit · Burger World · Baby Makes Uh, Three · Beware of the Butt · At the Sideshow · Customers Suck · Sick · Home Improvement · Way Down Mexico Way · Way Down Mexico Way Part 2 · At the Movies · No Laughing · No Laughing Part 2 · The Butt-head Experience · Lawn and Garden · Stewart's House · For Better or Verse · Bedpans & Broomsticks · Babes 'R' Us · Yogurt's Cool · Heroes · Sign Here · Washing the Dog · Friday Night · Be All You Can Be
Season 3: Comedians · Carwash · Couch-Fishing · Incognito · Kidnapped · Kidnapped Part 2 · Naked Colony · Tornado · Cleaning House · Scratch 'N' Win · Scared Straight · Eating Contest · Sporting Goods · Sperm Bank · Buff 'N' Stuff · Citizen Butt-head · Citizen Butt-head Part 2 · Politically Correct · Ball Breakers · Meet God · Meet God Part 2 · True Crime · The Trial · The Crush · Plate Frisbee · Canoe · Young, Gifted & Crude · Foreign Exchange · A Very Special Christmas With Beavis and Butt-head · Closing Time · Most Wanted
Season 4: Wall of Youth · Cow Tipping · Trouble Urinating · Rabies Scare · They're Coming To Take Me Away, Huh Huh · Jump! · Pumping Iron · Let's Clean it Up · 1-900-BEAVIS · Water Safety · Blackout! · Late Night with Butt-head · The Final Judgement of Beavis · Pool Toys · Madame Blavatsky · Beavis and Butt-head's Island · Figure Drawing · Date Bait · Butt is it Art? · Right On · Manners Suck · The Pipe of Doom · Safe Driving · Mr. Anderson's Balls · Patients Patients · Teen Talk · Crisis Line · Beavis and Butt-head vs. the Vending Machine · Generation in Crisis · Radio Sweethearts · The Great Cornholio · Liar! Liar!
Season 5: Held Back · Killing Time · Beard Boys · Choke · Safe House · Hard Sell · Walkathon · Temporary Insanity · Dude, a Reward · Walking Erect · Career Day · Plastic Surgin · Take a Number · Beaverly Buttbillies · Tainted Meat · Stewart Moves Away · Top O' The Mountain · Party · Wet Behind the Rears · Bad Dog · Lightning Strikes · Dream On · Candy Sale · Animation Sucks · What's the Deal? · The History of Women · To the Rescue · I Dream of Beavis · Pregnant Pause · Here Comes the Bride's Butt · Screamers · Beavis, Can You Spare a Dime? · Skin Trade · Oil Change · Buttniks · Bang the Drum Slowly, Dumbass · Another Friday Night · Tired · Close Encounters · Womyn · Premature Evacuation · Whiplash · Spare Me · Patsies · Murder Site · Spanish Fly · Sexual Harassment · Bus Trip · Green Thumbs · Steamroller
Season 6: Bungholio: The Lord of the Harvest · The Mystery of Morning Wood · U.S. History · Feel A Cop · Date Watchers · Blood Pressure · Huh-Huh-Humbug · It's a Miserable Life · Babysitting · Vidiots · Stewart Is Missing · Gang Of Two · Sprout · Prank Call · No Service · Yard Sale · P.T.A. · Substitute · Shopping List · Buy Beer
Season 7: Butt, Butt, Hike! · Vaya Con Cornholio · Evolution Sucks · Ding Dong Ditch · Just For Girls · A Very Special Episode · Dumbasses Anonymous · Underwear · Head Lice · Cyber-Butt · Nosebleed · Citizens Arrest · Pierced · A Great Day · On Strike · Follow Me · Nothing Happening · Take A Lap · Shortcuts · Bride of Butt-head · Special Delivery · Woodshop · TV Violence · Canned · Garage Band · Impotence · The Miracle That Is Beavis · Shopping Cart · Inventors · Die Fly, Die! · Drinking Butt-ies · Work Is Death · Breakdown · Graduation Day · The Future of Beavis and Butt-head · Speech Therapy · Leave It to Beavis · Butt Flambé · Our Founding Losers · Beavis and Butt-head Do Thanksgiving · Beavis and Butt-head Are Dead
Season 8: Werewolves of Highland · Crying · Daughter's Hand · Tech Support · Holy Cornholio · Drones · Supersize Me · Bathroom Break · The Rat · Spill · Doomsday · Dumb Design · Copy Machine · Holding · Used Car · Bounty Hunters · Time Machine · Massage · School Test · Snitchers · Whorehouse · Going Down