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[-[[caption-width-right:260:[[http://san.paulguo.com/?id=132 Don't ruin Zhuge Liang's evil moment.]]]]-]

This is a subtrope of EvilLaugh, and the opposite of DissonantSerenity. It's when a character goes around killing everything in sight and seems to be having a ''lot'' of fun with it, like [[SelfDemonstrating/TheJoker Joker]] levels of fun. Especially if the character is LaughingMad.

Typical of the BloodKnight, the BoisterousBruiser, some AxCrazy characters, and some {{Sociopathic Hero}}es, but it can happen to anyone, especially during a HeroicBSOD, a HeroicSacrifice or a BolivianArmyEnding. It's rather exceptional for normal heroes, since usually there's something ''deeply wrong'' if TheCape is actually having fun killing people (unless they're trained to do so).

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!!Examples:

[[foldercontrol]]

[[folder: {{Anime}} and {{Manga}}]]
* [[OmnicidalManiac Kid Buu]] from ''Manga/DragonBall Z'' for the most part can be summed up as "[[RuleOfThree Destroy, destroy, destroy and laugh, laugh and laugh]] some more."
** There's also Frieza laughing at the destruction of Planet Vegeta.
** This is taken further in ''WebVideo/DragonBallZAbridged'' where Frieza has been satirised to overuse Black Humour, trying hard (and often failing) to entwine a witty joke into each of his murderous deeds, especially when flying with Nail, he persistenly tries hard to get a reaction from Nail with his bad jokes and is continuously ignored.
* Zentraedi leader Boddole Zer in ''Anime/SuperDimensionFortressMacross'' gives a hearty "Muahahahahahaha!" as his fleet is destroying the Earth's surface and killing billions of humans.
* Hidan from ''Manga/{{Naruto}}''.
* Roberto tended to do this in ''Manga/{{Monster}}'' while Johan was more... ''[[DissonantSerenity calm]]'' about it.
* While the anime version of ''Manga/ElfenLied'' portrays [[WoobieDestroyerOfWorlds Lucy]] as TheStoic EmotionlessGirl who butchers people like the dozen without visible emotion, her manga counterpart displays a disturbing tendency to break in fits of insane cackling as she ripped people to pieces with gleeful abandon.
* It wasn't manslaughter, but the end of the great fight between "Nagi" and Rakan in ''Manga/MahouSenseiNegima'' shares the spirit.
** On the other hand, the series also presents us with a truly [[NightmareFuel terrifying]] example: CombatSadomasochist [[PsychoLesbian Tsukuyomi.]]
* Mad Pierrot from ''Anime/CowboyBebop''. To {{Nightmare Fuel}}ish levels...
* [[Manga/{{Bleach}} Kenpachi Zaraki]] is kind of the embodiment of this trope, although we only see him doing duels.
* Several characters in ''Manga/{{Hellsing}}'' (though most often Alucard) engage in this.
* Yuno Gasai from ''Manga/FutureDiary'' engages in this.
* Typical of the GoNagai style brand of SuperRobot show, especially ''Aime/GetterRobo''.
* In ''Manga/{{Devilman}}'', '''everyone''' does this at one point or another, but the titular Type IV anti-hero takes the cake. A cake made of brutality and guts.
* In ''Manga/{{Berserk}}'', many people take sick pleasure in slaughter, but Guts is the Ichiban Supeshiiarisuto: [[http://www.youtube.com/watch?v=-PE22PP4lKw Watch as he laughs his ass off while he swats babies to death with his BFS]].
* [[SuperpowerLottery Accelerator]] of ''LightNovel/ACertainMagicalIndex'' laughs insanely during every single one of his fights, most of which involve lots of killing.
* ''VisualNovel/HigurashiNoNakuKoroNi'': [[spoiler:Shion Sonozaki, during Meazaki-hen and thus Watanagashi-hen.]] There are pictures of her face with "You can't spell slaughter without laughter" captioned to them around on the internet, and she's pretty much the ''literal'' poster child for this trope.
** Though she didn't laugh when she actually killed, Rena does go LaughingMad while trying her best to kill Keiichi and Rika. Images of her wielding her hatchet with an open-mouthed roaring laugh are iconic.
* The ''Franchise/{{Gundam}}'' franchise's three big [[PsychoForHire Psychos For Hire]], [[Anime/MobileSuitZetaGundam Yazan Gable]], [[Anime/MobileSuitGundam00 Ali Al-Saachez]], and [[Anime/MobileSuitGundamAGE Desil Galette]] are all guilty of this, chuckling to themselves as they gun down MS after MS. ''[[Anime/MobileSuitGundamSeed Gundam SEED]]'' and ''[[Anime/MobileSuitGundamSeedDestiny Gundam SEED Destiny]]'''s Extended are not better about this, nor are their creators, Muruta Azrael and Lord Djibril.
** On the protagonist side of things, [[Anime/MobileSuitGundam00 Hallelujah Haptism]] has a tendency to laugh hysterically when the killing starts. [[SplitPersonality Allelujah, not so much]].
[[/folder]]

[[folder:Comic Books]]
* SelfDemonstrating/TheJoker in most of his incarnations, except when he's taking killing seriously.
** As demonstrated in the former page picture, in ''Film/TheDarkKnight'', he actually rides a circus truck emblazoned with "laughter is the best medicine", and a large red S spray-painted just before "laughter".
* Comicbook/SpiderMan foe Carnage also takes great joy in killing, as his name oh-so-subtley suggests.
* [[Comicbook/{{Daredevil}} Bullseye]] is this to a T. His sometimes friend/sometimes enemy Comicbook/{{Deadpool}} is also a good example.
[[/folder]]

[[folder:Fan Fic]]
* Pinkie Pie in the infamous ''WesternAnimation/MyLittlePonyFriendshipIsMagic'' fanfic {{Cupcakes}}, who giggles at doing horrible things to her victims.
** This has led to the fans realizing that Pinkie, as the Element of Laughter, really DOES put the "laughter" in "slaughter".
* Some ''Disney/{{Frozen}}'' fans decided to create a fan-made VillainSong [[https://www.youtube.com/watch?v=RlZF0s7Leso "Let Them Run"]], set to the melody of "Let It Go" in which Anna giggles as she sings about murdering people ([[spoiler: including her sister Elsa]]} like it's as fun as building snowmen.
[[/folder]]

[[folder:Film]]
* Any action movie that is filled enough with {{Narm}} has this, from the ''viewer'''s POV.
* ''HotShotsPartDeux'' is the most violent movie ever made! And it has [[AffectionateParody a lot of fun proving that]].
* JackNicholson at the climax of ''Film/TheShining'' was partly this.
* There's TheToblerone, too! Hahaha!
* ChristopherWalken's CorruptCorporateExecutive in ''Film/AViewToAKill'' likes gunning down his own henchmen way, ''way'' too much.
* In Christopher Nolan's ''Film/TheDarkKnight'', in the car chase on Wacker Drive, the Joker and his men are in a semi truck that has the slogan "Laughter is the best medicine". An S has been spraypainted to make the message say "Slaughter is the best medicine."
* King Ghidorah from the ''Franchise/{{Godzilla}}'' franchise is hardly one to let a scene of destruction go without cackling.
* In ''Film/TheSabataTrilogy'', Carrincha and Escudo (two characters in two different movies played by the same actor) are this.
* ''Film/LordOfWar'': During the weapons sale in Sierra Leone, Andre Baptiste Jr. is trying out the M60 from the first ''Franchise/{{Rambo}}'' movie which Yuri finally brought him. He guns down civilians on the side of the road while laughing with glee.
* A rare heroic example in Drax the Destroyer of ''Film/GuardiansOfTheGalaxy''. What sets him apart is that his laugh is very genuine - it's upbeat, happy, and excited, as opposed to the regular bloodthristy, sadistic laughter that most examples of this trope show off.
[[/folder]]

[[folder:Literature]]
* Bellatrix Lestrange from ''Literature/HarryPotter''. An authentic AxCrazy if she had an ax instead of a wand.
* Odiana in ''Literature/CodexAlera'' is completely AxCrazy and really quite cheerful ([[TheMadHatter and self-aware]]) about it. She usually expresses this by being inordinately [[CuteAndPsycho cute and cheery]] while suggesting that they just kill everyone in about a 5-mile radius.
* [[BloodKnight Rachel]] from ''Literature/{{Animorphs}}'' is a rare heroic ([[SociopathicHero well,]] [[BlackandGrayMorality sort of]]) example of this. Right before charging into [[spoiler: her final battle,]] she leaves us with this little gem: "I felt...I felt exalted. It was my moment. This was my place and my time and my own perfection. I was no longer afraid. Weird. If I'd had a mouth I'd have smiled. I said. No one moved. I asked. No answer. I said, almost laughing. I lunged..."
* Tulkas, the god of war in Creator/JRRTolkien's universe is a rare good example of this.
* Edward Dunn "Ned" Malone, the journalist in Arthur Conan Doyle's {{Literature/The Lost World}} when he shoots the ape-like creatures (called Doda by the Accala natives). However, he is the main hero of the book
[[/folder]]

[[folder:Live Action TV]]
* In ''Series/{{Heroes}}'', Sylar has a good bit of fun being a psychotic serial killer.
* The easiest way to describe the new series ''Series/DoctorWho'' version of the Master is "completely insane...and loving every second of it."
** River Song is a SociopathicHero version, as she takes great delight in shooting down the bad aliens.
[[/folder]]

[[folder:Tabletop Games]]
* The [[{{Exalted}} Yozi Adorjan]] is infamous for this; the only sound she can stand is her own laughter, she swoops around the Demon City slaying all she touches, and murder is something she finds particularly amusing. Those who take enough of her Charms will also eventually adopt this attitude.
[[/folder]]

[[folder:Video Games]]
* Any FPS that is ''VideoGame/DukeNukem''-ish enough has this:
** The characters in ''VideoGame/Left4Dead'' have a cackling sound file that some players set to play whenever they fired their guns.
** Caleb from ''VideoGame/{{Blood}}'' also periodically laughs maniacally when there's lots of violence happening on the screen... Such as when he just threw a bundle of dynamite into a crowd of evil cultists (and/or innocent civilians).
* [[spoiler:Shion]] during her [[spoiler:torture of Satoko]] in ''VisualNovel/HigurashiNoNakuKoroNi''.
** [[spoiler:Eva-Beatrice]] at a bare minimum during her murder of [[spoiler:Rosa]], in ''VisualNovel/UminekoNoNakuKoroNi''. So much so that [[CruelAndUnusualDeath once just]] [[AFateWorseThanDeath wasn't enough]]. And actually, Beato herself quite a few times, although [[spoiler:it was stated in red that this was not the case]].
** Kinzo, when he makes his 1st twilight appearance in episode 4, [[ChewingTheScenery chews the dining room and most of the diners]].
* [[SuikodenII Luca Blight]]. His motto might as well be "You can't spell 'Slaughter' without 'Laughter'!"
* [[VideoGame/FinalFantasyVI Kefka, people!]] Just [[MonsterClown one]] [[AxCrazy of]] [[LaughingMad the MANY]] [[SlasherSmile things]] he has in common with The Joker.
* In ''VideoGame/TeamFortress2'', the Heavy Weapons Guy is notable for this, especially towards the end of the [[http://www.youtube.com/watch?v=mY5qJHZCz2I "Meet the Heavy" video]]. The other characters, too, apply when dominating an opponent.
* Wallachia of ''VisualNovel/MeltyBlood'' laughs madly even as he chops his opponents to bits. Not that you see any blood, but that's the impression.
* Dimentio in ''VideoGame/SuperPaperMario'' does this after [[spoiler:"killing" Mario, Peach, and Bowser.]]
* ''VideoGame/DawnOfWar'': Khorne Berserkers, Chaos SpaceMarines and Ork Big Meks all have laughing sounds when attacking. Aspiring Champions even have a fast-paced laugh when their morale is gone.
* In ''VideoGame/{{Borderlands}}'', Brick, the Berserker, seems to have a lot of fun beating people into a pulp with his bare hands while in his Unstoppable Rage.
* In ''VideoGame/SonicTheHedgehog2006'', Mephiles laughs like a lunatic after [[spoiler:killing Sonic.]]
* In ''VideoGame/MassEffect3'' multiplayer, krogan characters let out a good laugh after they kill enough enemies in a row with melee and go into [[SuperMode blood]] [[UnstoppableRage rage]]. Also happens sometimes with Grunt, your Krogan squadmate from the second game, who ''really enjoys'' killing things.
* Akechi Mitsuhide from ''VideoGame/SengokuBasara'' is LaughingMad in the first place, but once you get him in the heat of battle, oh boy...
* The Warlock from VideoGame/Dota2 is usually a deadpan person, but if you give him enough items to abuse his ultimate to summon multiple demons (as opposed to one normally), he loses his cool and starts laughing maniacally.
* Miss Fortune from LeagueOfLegends will laugh maniacally when unleashing her BulletHell ultimate skill.
[[/folder]]

[[folder:Web Animation]]
* Flippy from ''WebAnimation/HappyTreeFriends'' when he goes AxCrazy.
* WebAnimation/{{RWBY}}'s Nora is a GenkiGirl BloodKnight who is cheerfully enthusiastic about everything- including slaying monsters. Weirdly, she's on the side of the heroes.
* Insanity Wolf references this trope (three words away from word-for-word, even) during one of his verses of his ''Animeme Rap Battle'' against Courage Wolf.
[[/folder]]

[[folder:Western Animation]]
* In his last scene, Hank Scorpio in ''WesternAnimation/TheSimpsons'' grabs a flamethrower and jumps down to battle a bunch of soldiers invading his secret lair. He laughs maniacally as they all desperately run for cover, and while Homer is leaving you can hear Scorpio shouting to him that he's "missing out on some fun!"
* One episode of ''WesternAnimation/DrawnTogether'' features a sickeningly-sweet WesternAnimation/StrawberryShortcake clone who's actually committing a Holocaust. But, she reminds us, "You can't spell slaughter without laughter!"
* The 1961 ''ComicStrip/{{Popeye}}'' cartoon "It Hurts Only When They Laugh" has Olive making Popeye and Brutus laugh while she's doing the dishes so she'll know they're not misbehaving and fighting. However, while Olive is doing the dishes, Popeye and Brutus are beating the living hell out of each other--and destroying the living room in the process--while laughing. The boys lampshaded it at the end in Popeye's ending theme tag:
-->'''Popeye:''' You're not a riff-raff...
-->'''Brutus:''' If ya fights and ya laugh...
-->'''Popeye:''' With Popeye the Sailor Man! (''toot toot!'')
[[/folder]]
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