History Main / OrificeInvasion

A SuperTrope to KillItThroughItsStomach (in that the invaded thinks it's just eating the invader).

* ''Film/Life2017''. The creature they've dubbed [[FluffyTheTerrible Calvin]] commits his first kill this way, though it's implied others follow a similar pattern. Calvin goes inside Rory's mouth, despite Rory's horrified expression and futile attempts to stop him, then Rory starts [[BloodFromTheMouth coughing up blood droplets and can't breathe]]. His face grows more strained with veins present. Then he stops moving. And he just floats there, as huge droplets of blood float out of Rory's mouth. Then Calvin emerges out of his bloodied mouth, appearing much, '''MUCH''' bigger.

* ''Film/Life2017''. The creature they've dubbed commits his first kill this way, though it's implied others follow a similar pattern. [[FluffyTheTerrible Calvin]] goes inside Rory's mouth, despite Rory's horrified expression and futile attempts to stop him, then Rory starts coughing up blood droplets and can't breathe. His face grows more strained with veins present. Then he stops moving. And he just floats there, as huge droplets of blood float out of Rory's mouth. Then Calvin emerges out of his bloodied mouth, appearing much, '''MUCH''' bigger.

* ''Film/StarshipTroopers2HeroOfTheFederation'' introduces a breed of bugs that enter through the mouth to control humans (it's also a convenient way to save on the special effects).

** This premise is later used in "Cheese Chasers", as mice Hubie and Bertie, going off cheese after binging on it, decide there's nothing to live for, and haunt Claude Cat trying to be eaten. Found [[http://www.dailymotion.com/video/x1atz9l_cheese-chasers_shortfilms here]].

* An example heavily overlapping with EatingTheEnemy can be seen in chapter 31 of ''Fanfic/VoyagesOfTheWildSeaHorse''. [[spoiler:[[OurVampiresAreDifferent Nabiki Tendo]] attempts to defeat her assailant, Nosferatu, by draining her blood. Nosferatu, being a sapient bacteria that [[HumanShifting can assume human form]], reverts to its "true" form, a BlobMonster, and forces its way into Nabiki's stomach, hoping to infect her from the inside out. And then it discovers that, due to her ability to [[BloodyMurder manipulate her own blood]], ''it can't''. It then starts desperately trying to [[ChestBurster rip its way out]] of her [[BalloonBelly distended stomach]], only to end up as a [[BizarreBelching cloud of greasy green ashes]] that Nabiki [[BurpOfFinality burps up when she's done digesting]].

* In ''Manga/{{Basilisk}}'', one of the ninjas from the Iga clan whose power is to turn into a slug-like thing in the contact with salt kill a ninja from the Kouga clan by jumping in his mouth, inside his throat and breaking his neck.

%%* The Bonethieves in ''VideoGame/EternalDarkness''.

* In an episode of ''WesternAnimation/TheVentureBrothers'', The Monarch threatens to dunk the Venture family in a river teeming with candirus. Bizarrely, Dr. Venture claims that the candiru are a myth (when it's just the part about them crawling into people that's made up).

[-[[caption-width-right:245:It [[JustForPun sucks]] to be on the [[JustForPun tail end]] of this.]]-]

** Done in WesternAnimation/{{Sylvester|TheCatAndTweetyBird}}'s first short "WesternAnimation/LifeWithFeathers", in which a [[IncrediblyLamePun henpecked]] male bird wants to commit suicide, so decides to feed himself to the cat. Of course, Sylvester is [[ParanoiaFuel suspicious]] about why the bird would want to do this, so he spends the entire cartoon running away, with the aforementioned bird chasing him and pleading to be eaten. Found [[http://www.dailymotion.com/video/x3li1j_life-with-feathers_family here]].

* In ''Film/TheIsland'', the diagnostic sensors (which look like a cross between ticks and spiders) crawl into the body via the eye socket.

** The same goes for her adoptive uncle Kariya, who is also quite "intimate" with the aforementioned worms. The scene in which he had a [[DoesThisRemindYouofAnything remarkably phallic worm forced down his throat]] is probably the most graphic Orifice Invasion of the series. Zouken even says that this worm in particular took Sakura's virginity.

* The Alp-Luachra in Irish fythology is a kind of [[TheFairFolk fairy]] that takes on the form of a newt and crawls down the throat of anyone who falls asleep near a stream to feed off of the food that person has consumed. The only way to get rid of this creature was to eat a large quantity of salted meat and wait near a stream until the creature left the body to take a drink.

%% Image kept on page per Image Pickin' thread: https://tvtropes.org/pmwiki/posts.php?discussion=1308675959081900100
%% Please do not change or remove without starting a new thread.

* In ''Manga/DragonBallZ'', one of the first acts Super Buu commits after being formed is to turn entirely into pink goo, force himself down the throat of one of the Earthlings that shot Fat Buu's dog and expand, blowing the guy apart from the inside.
** Later tried again against [[FusionDance Vegetto]] in the anime adaptation, who responded by beating the crap out of Buu ''from the outside''.
* In ''Anime/DragonBallGT'', Baby possesses Vegeta while he's powering up by reverting to his liquid metal state and enters his body through his pores.
* This is how the larval form of the entities in ''Manga/{{Parasyte}}'' take control of their hosts, usually entering through the ear of a sleeping person to get at the brain. When the protagonist fell asleep with headphones on, his symbiote tried getting in through one of his nostrils instead, which caused him to wake up prematurely, so it had to settle for burrowing into his arm. He could see it under his skin trying to travel up to his head so he tied his headphone wires tight around his arm to keep it in place, screwing up the transformation process so he and it end up SharingABody instead of it taking over completely.
* ''Manga/GetterRobo'' has the Invaders, a race of [[CosmicHorror cosmic horrors]] who can invade people's bodies if they so much as ''bleed'' on them. Though most of the time they prefer to just dive into people's throats, or simply rip a hole in their torso and use that.
* Medusa in ''Manga/SoulEater'' possesses an innocent girl in the suburbs this way, by turning into a snake and slithering into her mouth.
** And before she did it to the girl, she did it to a dog.
** She also does this with the snakes she controls instead of herself: if she can get something into an entry point to your body she can send in hundreds of snakes which let her track you wherever you are and can rip you to pieces whenever she tells them to.
* Happens too many times to count in ''Manga/JojosBizarreAdventure''.
* In the manga version of ''Film/{{Juon}}'', this is how Kanna meets her end when a bunch of possessed cats enter her mouth [[spoiler:and [[{{Jawbreaker}} tear her jaw off]]]].

* Done constantly to poor Sakura in ''Literature/FateZero'' (with a pit full of crest worms) by her adoptive grandfather as part of her "training" as a mage. It's explicitly said that they enter her body through her vagina, and she had to endure said training from age 5 to 16.
** Same for her adoptive uncle Kariya, who is also quite "intimate" with the aforementioned worms. The scene where he had a [[DoesThisRemindYouofAnything remarkably phallic worm forced down his throat]] was probably the most graphic OrificeInvasion of the series. Zouken even said that this worm in particular took Sakura's virginity.

* During the penultimate battle of ''Anime/YokaiWatchShadowside'', one of the Shinma, [[BigBad Big Bad's]] shadowy minions, forces itself down Micchy's throat to possess him. It succeeds, albeit briefly, as Micchy is rendered unconscious seconds later, forcing the Shinma to leave his body. The same thing later happens to Jibanyan, although the viewers are spared the gory details this time around.

* The Franchise/DCUniverse ''ComicBook/FiftyTwo'' series answers a question no one ever asked before: can orifice invasion of [[spoiler:a ''robot'']] be made to look horrific? The answer? Dear Nicolas Cage, yes.
* The image example for this trope comes from ''The Piper #2'' by Zenescope comics. The woman in question ([[TheBrute Sandra]]) just had a poisonous snake slide into her mouth after putting her lips on a french horn's mouthpiece, [[spoiler:all thanks to the Piper playing his lethal song outside her room [[DealWithTheDevil in behalf of Sean]] due to her [[NoHoldsBarredBeatdown beating the crap out of Sean]] for her buddies over him having recorded a tape, then getting away with it. [[AssholeVictim She dies]].]]
* A (relatively) innocent example [[http://ps238.nodwick.com/comic/05302011/ happens in]] ''ComicBook/PS238'' when [[RubberMan Polly Mer]] tries to stop a metahuman with SuperStrength and MakeMeWannaShout powers by wrapping herself around his head. Unfortunately his inhaling abilities are a bit stronger than expected. Polly states afterwards it's the [[{{Squick}} first time she's felt what lungs feel like.]]
* Averted in ''ComicBook/HackSlash''. A fetal Slasher with a knife attempts to crawl into Cassie Hack's vagina while she's at the ''gynecologist's office''. Cassie, of course, takes exception to this.

* ''ComicBook/RedRobin'': Sac has his spiders crawl inside of one of Ra's Al Ghul's trusted workers (trusted in the sense that Ra's had the man's family hostage at gunpoint) in order to force him to divulge information about Ra's' location. When he's done with him Sac has his spiders and the thousands of young in the eggs they'd laid in the man kill him by [[ChestBurster eating and clawing their way out of him]].
* ''ComicBook/GuardiansOfTheGalaxy2008:'' Moondragon gets a baby EldritchAbomination in the face, which enters her via the nose. Rocket Racoon, who is a witness, mentions hearing the sound of bones breaking as it forced its way inside.

* In ''ComicStrip/CalvinAndHobbes'', one of Calvin's [[ImagineSpot fantasy sequences]] involves a frog forcing its way into his mouth and being swallowed. Which leads to the punchline: [[spoiler:he had a frog in his throat.]]

* ''Fanfic/ShatteredSkiesTheMorningLights'': In this MagicalGirl CrisisCrossover, [[spoiler:SlimeGirl Jamanen from ''Franchise/SailorMoon'' appears with a vastly upgraded power set. In a ShoutOut to the infamous Inque scene from ''WesternAnimation/BatmanBeyond'' below, she forces herself down [[Anime/HappinessChargePrettyCure Cure Fortune's]] throat and floods her body... [[FateWorseThanDeath but this doesn't kill her]]. [[TheAssimilator The process assimilates Fortune's body into a "drone" under Jamanen's control]], after which she forces her new servant to beat [[Anime/FutariWaPrettyCure Cure Black]] to a pulp while she's [[AndIMustScream helpless to do anything but watch]].]]

--> One of the spectres supporting the unfortunate vampiric Keeper forced its way into his gaping mouth, slid down his throat, and wrapped around his strained vocal chords. His screams died down as his neck bulged and swelled to grotesque proportions, allowing Zarekos to address his slaves without having to shout.
* ''FanFic/Flashpoint2AdventSolaris'' gives us a mature take on "Changelings", which are shown to utilize this trope in a most horrific manner. [[spoiler:Their queen lays her eggs ''inside'' the ''corpses'' of their victims.]]
* A meme that arose in the months leading up to ''Film/AvengersEndgame'' suggested that ComicBook/AntMan could defeat ComicBook/{{Thanos}} by shrinking down to insect size, crawling up Thanos's butt, and expanding to human or even giant size.

[[folder:Film — Live-Action]]

* Used with a snake in ''Film/CollateralDamage'' by the BigBad, to execute a spy.
* ''Film/DontListen'': [[spoiler:Whenever someone gets possessed by the witch's ghost,]] a fly enters that person's ear.
* The fly that enters the nose of the main characters ''Film/DragMeToHell''.

* The slugs in ''Film/NightOfTheCreeps''.
* The slugs in the movie ''Film/{{Slither}}'' enter their hosts through their mouths.
* In ''Film/{{Sniper}}'', Thomas Beckett (Creator/TomBerenger) warns his partner not to urinate as they are wading through a waist-deep river, because small organisms will enter his urethra and dig in with spikes.
* ''Film/StarshipTroopers2HeroOfTheFederation'', the [[BMovie low-budget sequel]] to the first movie, introduced a breed of bugs that entered through the mouth to control the humans (it was also a convenient way to save on the special effects).
* The larval Ceti eels in ''Film/StarTrekIITheWrathOfKhan'' enter through the ear.
** The Centaurian Slugs in the new ''Film/StarTrek2009'' movie crawl down through the victim's throat. WordOfGod says they're a ShoutOut to the Ceti eels.
* In the short film ''[[Film/MichaelJacksonsGhosts Ghosts]]'', the Maestro (played by Music/MichaelJackson) possesses the Mayor (also played by Jackson) through the mouth.
* In ''Film/TheIsland'', the diagnostic sensors (which look like a cross between ticks and spiders) crawl into the body via the eyesocket.
* In Creator/JohnCarpenter's ''Film/PrinceOfDarkness'', the AntiChrist is a green liquid who enters into people via their mouths: the hosts then do the same thing to spread the possession, i.e. vomiting into other people's mouths.
* ''Film/EXistenZ'' is played this way.
* Played for laughs when ''Film/BillAndTed'''s ghosts try possessing two men. They squeeze in through the ears.
** "I totally possessed my dad!"
* In ''Scourge'', the titular black silverfish-like parasite enters through the navel.
* After he is blown to bits, Jason Voorhees's heart in ''Film/JasonGoesToHellTheFinalFriday'' evolves into a small creature which does this to take over bodies.
* In ''Film/{{Flubber}}'', the titular Flubber shoots into Wilson's mouth, ''wriggles around inside of him'', and then explodes out the rear.
* In ''Film/FreddyVsJason'', the bug creature in Freeburg's nightmare forces itself down his throat.
* The snake scene from ''Lady Terminator''. Still pondering how they got away with that.
* ''Film/FaustLoveOfTheDamned'': During the ritual to summon the Homunculus, M pulls an albino snake out of his mistress' abdomen before forcing it down the throat of an honest cop that he brainwashed to follow him.
* ''Film/Shivers1975'': The lust-spreading parasites enter through a person's throat, with someone who's already been infected kissing another person to spread the parasite. Or in one case, through a woman's vagina while she's taking a bath.
* ''Film/Piranha3DD'' has a baby piranha swimming into a woman's vagina as she's SkinnyDipping. When she's having sex later, the piranha [[GroinAttack makes short work of the approaching penis.]]

* The titular ''[[CatsAreMean Cat from Hell]]'' (a Creator/StephenKing short story adapted into the anthology ''Film/TalesFromTheDarksideTheMovie'') leaps into the mouth of a hitman hired to kill him, causing the hitman to choke to death before the cat goes all the way down his throat (we read/see just the tail wagging out of the mouth before it disappears into the victim). This really goes with RuleOfScary in TheMovie, where the cat is obviously way too big to do that (although vaguely hinted to be a spirit of vengeance).
* The babelfish of ''Literature/TheHitchhikersGuideToTheGalaxy'' enters the ear (but just stays in the ear canal), although it's more helpful than other creatures of this trope.
* The creature in Creator/PiersAnthony's novel ''Firefly'' does this.
* In ''Literature/{{Animorphs}}'', Yeerks take over human beings by way of infestation through the ear canal.
** Also Father in the Ellimist Chronicles, a giant sentient sponge (well, sort of) that sticks tendrils into the body to keep its victims alive (or in the case of the dead, keep them from decaying as long as they remain attached) and giving it access to their minds.

* There's a story by Creator/TanithLee about a [[DemonicPossession demon that takes possession]] of humans via their orifices, so to try and prevent being possessed one guy blocks all of his orifices, but [[spoiler:forgets his urethra. Ow.]]
* In the ''Series/StarTrekDeepSpaceNine'' novel "The Siege", an evil shapeshifter kills a Cardassian by ramming himself down the victim's mouth, then expanding inside. In a later novel, Odo threatens to do this to a Cardassian officer should he dare to disturb Odo's regeneration.
* The biotech of the villainous Yuuzhan Vong in the ''Franchise/StarWars'' ExpandedUniverse often does this. Numerous creatures fit the trope more exactly by slithering into ears or eye sockets, or down the mouth.

* In Stephen Baxter's ''[[Literature/ManifoldSpace Space]]'', the hero Malenfant is integrated with an android/computer system. Tendril-probes infiltrate him... essentially everywhere, and there is no attempt at anaesthesia. He is doomed to live for billions of years in this state unless he fails in the task for which he was converted, in which case [[spoiler:a stellar event will occur that will kill every living thing in the galaxy except for archaeobacteria and slime moulds.]]
* ''Literature/TheFallen. ''Leviathan'' has people having their bodies taken over by making the creatures enter through their mouths.
* In ''Toys/{{Bionicle}}: Island of Doom'', Zaktan "lectures" one of his men, Avak, by [[WormThatWalks dispersing his body into the microscopic insects its made up of]], and swarming them into Avak's mouth and eyes.
* Ignatius of ''Literature/{{Horns}}'' can exert control over snakes. [[spoiler: He uses this to trick a large snake into slithering into the open mouth of an injured villain, resulting in his death.]]
* The victims interviewed in Budd Hopkins' ''Intruders'' retell of ear probing and possible tracking device installation.
* ''Literature/{{Deeplight}}'': The Gathergeist defeated the Swallower by shoving its tentacles into the Swallower's mouth, breaking its jaw, and [[GodEating eating it from the inside]].

* One RealLife example was in ''Series/TheAmazingRace'', where one of the guy woke up partly covered by leeches, and one somehow crawled into his urethra.

* ''Series/DoctorWho'': In the [[Recap/DoctorWhoTVMTheTVMovie TV Movie]], {{the Master}} in the form of a slug-like creature crawls into the mouth of a sleeping paramedic to take control of his body.
* An episode of ''Series/{{Lexx}}'' had space carrots that take over people's bodies by ramming themselves up their anuses.
* In Series 4 Episode 4 of ''Series/{{Misfits}}'', Rudy sleeps in a slug-infested room in the community center, and one of the slugs crawls up his anus. He attempts to remove it by inserting some salt.
* ''Series/MyHero2000'' had a character, Piers, voluntarily get taken over by an alien that enters through his urethra. It's not shown; the scene cuts to the door of the room he's in and we hear an agonized scream. Then we cut back to the room where Piers is bent over in agony, clutching his abdomen and saying to the alien, "Did you have to go in ''that'' way?" to which the alien apologizes.
* A classic ''Series/NightGallery'' episode has a man hiring someone to do away with a rival by planting an earwig in his ear at night, where it will crawl into his head, constantly eating (see "Real Life" below) -- in a karmic slip-up he gets it planted in himself. In a million-to-one fluke, he survives weeks of agony when it crawls out his other ear. With the boldness of one who's been through Hell he owns up to his deed and claims he'd do it again... [[spoiler:then he finds out that [[FemaleMonsterSurprise the earwig was an egg-laying female]]]].

* ''Series/{{Sliders}}'' had an episode where Maggie gets taken over by a parasite that got in through her mouth.

* This is how the Nogisune tends to possess or influence people in ''Series/TeenWolf''. It tok control of its first body by entering it's mouth the form of a fly. Later, while in [[spoiler: Stiles's]] body, it released many more flies. They entered Isaac through his IV pump, Ethan through his nose, Aiden through his ear, and Derek through an open wound on his back, and acted as a HatePlague for all four of them.
* Hunting for mole lizards in Baja California, the host of ''Weird Creatures'' is told a local UrbanLegend that these worm-like animals will invade the anus of anyone who defecates over their burrows.
* It's one of the trademarks of ''Series/TheXFiles''. The Black Oil a.k.a. Black Cancer a.k.a. Purity is an alien virus that gets into your body through [[EyeScream your eyes]] and mouth and assumes complete control over it, optionally using it as a host for gestating a baby alien.
* ''Series/LegendsOfTomorrow'': In "[[Recap/LegendsOfTomorrowS4E10TheGetaway The Getaway]]", a roach belonging to the Egyptian Goddess of Truth enters the mouth of anyone telling a lie to feed, forcing them to tell the truth. Sara tries to prevent this by covering her mouth, but the bug just goes through her nostril instead. Thankfully, Constantine's magic can pull it out.

* Music/{{Bjork}}: During the music video of "Hidden Place" from ''Music/{{Vespertine}}'' fluids flow in and out of Björk's nose, mouth and ears, but she doesn't seem to be bothered by it.

* The Alp-Luachra in Irish folklore is a kind of [[TheFairFolk fairy]] that takes on the form of a newt and crawls down the throat of anyone who falls asleep near a stream to feed off of the food that person has consumed. The only way to get rid of this creature was to eat a large quantity of salted meat and wait near a stream until the creature left the body to take a drink.

** The 3.5 edition sourcebook ''Lords of Madness'' introduces a new (and decidedly creepy) aberration: the Tsochari (singular Tsochar), a mass of tentacles that bores into victims and can either coerce the victim into behaving itself by causing them great pain, or, kill the victim and wear the body as a disguise.
** And then there are hellwasp swarms that can enter a dead body and animate it... or enter a living body and [[BodyHorror force it to do what they want]]...
** And then there's the process of ceremorphosis, which a mind-flayer tadpole is inserted into the ear of a hapless humanoid (usually a captive human, orc or drow), which eventually turns them into a new mind flayer.
** And to crown the collection there's the DC 90 Escape Artist check from the Epic rules. Combined with Enlarge Person...

* ''Franchise/{{Metroid}}'':
** Samus can pull this on the final boss of ''VideoGame/MetroidIIReturnOfSamus''. If you stun it with its mouth open, you can roll down its throat and into its stomach as the morph ball. It doesn't want to spit you back out until you [[AttackItsWeakPoint drop a few bombs]] and inflict massive damage.
** You can also do this in ''VideoGame/MetroidPrime'' as a CallForward and in ''VideoGame/MetroidOtherM'' [[spoiler:when you face the Metroid Queen again]].
** In a case of DevelopersForesight, it's possible to inflict this on Kraid in ''VideoGame/MetroidDread'' if you [[SequenceBreaking obtain the Morph Ball Bombs before you're officially intended to]]. [[https://youtu.be/yQ2WGL_q7bI&t=39s Observe.]]
* In ''VideoGame/DevilMayCry4'', Nero can do this to Bael after stunning him and using [[GrappleMove Buster]] directly in front of him. Cue Nero hopping into the demon frog's mouth and slashing him up from the inside before bursting out of his back. Ironic, considering that Bael was repeatedly trying to eat Nero before and during their battle.

* G-Virus monsters of ''VideoGame/ResidentEvil2'' reproduce by implanting their spawn into a host through the mouth. If the victim is compatable with the monster (related by blood) the victim will mutate into a new one, otherwise the offspring [[ChestBurster explodes from the chest]] ''Franchise/{{Alien}}'' style and mutates into a different monster.
* Several of Las Plaguas were inserted at adult size into the mouth of the victims in ''VideoGame/ResidentEvil5'' for quicker control of the hosts.
* The alien species in Microsoft's ''VideoGame/{{Freelancer}}'' entered a host through the mouth and effectively take complete control of the body, including the host's memories and personality traits, or at least enough so that nobody realizes that the person they're talking to isn't really [[spoiler:the Chancellor]] anymore...
* In one of the dungeons in ''VideoGame/PokemonMysteryDungeon: Explorers of Time/Darkness/Sky'', Grovyle is attacked by a Spiritomb, which took control of his body by entering through his nose.
* ''VideoGame/MortalKombatII'': One of [[EvilSorcerer Shang Tsung's]] fatalities is forcing himself into his opponent's body, causing them to inflate to ridiculous proportions followed by the victim [[LudicrousGibs exploding into a massive shower of blood and bones]].
%%* And then there are the Bonethieves in ''VideoGame/EternalDarkness''.

* The Death Slug from ''VideoGame/TheVisitor'' in it's larva[=/=]parasite form does this, allowing itself to be eaten or, [[AssShove taking the back door]] in order to [[BodyHorror absorb and messily kill it's host]]
* In ''VideoGame/{{Bugsnax}}'', [[spoiler: it's revealed that the adorable eponymous creatures are actually parasites that assimilate anything that eats them into the living island they're a part of. As the climax shows, they're willing to resort to ForceFeeding ''themselves'' to their hosts. Under certain circumstances, it's entirely possible for almost every character to die this way.]]

* Yeon from ''Webcomic/TowerOfGod'' falls victim to a PuppeteerParasite that invades her gastro-intestinal tract. The fact that it was as big as her and disguised as a [[spoiler: MonsterClown]] makes it just as squicky as the fact that the way how it entered her mouth on the bed was shot made it reminiscent of something else entirely.
* The...uh...nurses(?) in ''Webcomic/{{Oglaf}}'' use a "polyp of cleansing" to cure the unfortunate Ivan of poison. The phrase "open your food tract, mammal" is employed, followed by a very unpleasant-looking panel. Of course, given which webcomic this is, perhaps we should be glad it was his ''mouth''.
* In ''Webcomic/CommanderKitty'', [[http://www.commanderkitty.com/2012/11/25/up-your-nose/ Commander Kitty ends up with one of his crew rammed up his nose after a transporter accident.]]

* ''Website/SCPFoundation'', [[http://scp-wiki.wikidot.com/scp-695 SCP-695 ("Eels")]]. SCP-695's life cycle starts when its juvenile form enters a human male through his mouth, nose, anus, and urethra.
* ''Literature/WhateleyUniverse'': For several ([[WebcomicTime real world]]) years, there was a running gag about a NoodleIncident involving [[CuteButPsycho Generator]], which everyone referred to as... [[InvokedTrope The Noodle Incident]]. However, when they finally [[http://whateleyacademy.net/index.php/original-timeline/118-so-shalt-thou-show-me-friendship gave Lancer's full]] (and-spoilerific) SuperheroOrigin story, author Phoenix Spiritus broke with tradition by describing what actually happened. It involves Jinn demonstrating that [[spoiler: even a FlyingBrick has trouble breathing when their lungs are filled with animated spaghetti]].
* In the "Danger Music" episode of ''WebVideo/EpicNPCMan'', the mouse that goes KillerRabbit on Ben can be seen to leave his neck and crawl into his mouth after he collapses.

* In an episode of ''WesternAnimation/TheVentureBrothers'', The Monarch threatens to dunk the Venture family in a river teeming with candirus. Bizarrely, Dr. Venture claims the candiru are a myth (when it's just the part about them crawling into people that's made up).

** In episode "Franz Hopper", instead of possessing one specter tries to clog Jérémie's airways by entering his mouth and nose.
* In ''WesternAnimation/AdventureTime'' episode "Jake vs. Me-mow", Me-mow climbs into Jake's mouth with a syringe of [[PoisonAndCureGambit poison]].

* PlayedForLaughs a few times in ''WesternAnimation/AvatarTheLastAirbender''.
** Happens to Sokka when [[TeamPet Momo]] grabs a spider out of his mouth to eat it.
** Momo is missing, and Sokka thinks Appa ate him, so he crawls in Appa's mouth to see. Appa just spits him out.
* ''WesternAnimation/TheLegendOfVoxMachina'' Scanlan suggests this as a method for he and Vax'ildan to attempt to kill the dragon Umbrasyl from the inside, Vax assumes Scanlan is suggesting [[EatMe they get Umbrasyl to eat them whole]] and shoots down the idea by pointing out the dragons [[BreathWeapon acid breath]]. Turns out Scanlan wasn't suggesting taking the front entrance.... queue them both held in one of Scalan's magically projected GiantHandsOfDoom as it also extends two of it's fingers and [[AnalProbing zooms towards Umbrasyl's anus]].
* ''WesternAnimation/LooneyTunes''
** Done in [[WesternAnimation/LooneyTunes Sylvester's]] first short "WesternAnimation/LifeWithFeathers", in which a [[IncrediblyLamePun henpecked]] male bird wants to commit suicide, so decides to feed himself to the cat. Of course, Sylvester is [[ParanoiaFuel suspicious]] about why the bird would want to do this, so he spends the entire cartoon running away, with the aforementioned bird chasing him and pleading to be eaten. Found [[http://www.dailymotion.com/video/x3li1j_life-with-feathers_family here]].
** This premise is later used in ''Cheese Chasers'', as mice Hubie and Bertie, going off cheese after binging on it, decide there's nothing to live for, and haunt Claude Cat trying to be eaten. Found [[http://www.dailymotion.com/video/x1atz9l_cheese-chasers_shortfilms here]].
** In "Beanstalk Bunny'', Bugs and Daffy try to get away from the giant (Elmer) by crawling into his ears and into his head. Elmer isn't hurt (indeed, his head seems quite empty) but gets angry and "smokes" them out by lighting a cigarette.
* ''WesternAnimation/SymBionicTitan'' takes this to a disturbing extreme. Xishi, a squid-like monster about the size of an average human, climbs ''all the way down her victim's throat'' and forces them to speak the truth. What's really creepy about it is that Xishi's face is visible from inside the victim's throat.
* Carrie from ''WesternAnimation/TheAmazingWorldOfGumball'' can posses someone by flying into their mouth and down their throat.

** The Geonosian Brain Worms enter the victims through the nose, and take control of the body. [[SkewedPriorities Obi-Wan is more interested in guessing whether it goes in the ear or the nose]] than worrying about the fact that one of his closest allies is about to be mind-controlled, and he's next.
** A subversion occurs in Season 4, when [[spoiler:Obi-Wan voluntarily swallows a "vocal emulator", a spider-like device that changes his voice, in order to perfect his disguise as Bounty Hunter Rako Hardeen.]]
* Mr. Slave from ''WesternAnimation/SouthPark'' enjoys forcing small animals to crawl up his ass.

* ''Film/{{Shivers}}'': The lust-spreading parasites enter through a person's throat, with someone who's already been infected kissing another person to spread the parasite. Or in one case, through a woman's vagina while she's taking a bath.