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[[quoteright:290:[[Film/YoungFrankenstein http://static.tvtropes.org/pmwiki/pub/images/rsz_marty-feldman_2222.jpg]]]]
[[caption-width-right:290:[[MemeticMutation HERP DERP MASTURR]]]]

->''"I can't stop looking into those entrancing eyes... Can she see all around her? Maybe she can see through the very fabric of time and space!"''
-->-- '''[[VisualNovel/AceAttorney Phoenix Wright]]''' on [[WesternAnimation/MyLittlePonyFriendshipIsMagic Derpy]] [[MemeticBystander Hooves]], ''WebAnimation/TurnaboutStorm''

How do you make a blank stare even blanker? Have the character's eyes face slightly (or even more than slightly) ''away'' from each other -- reverse cross-eyes, if you will. It's usually used to make the character look unintelligent or dumbfounded, causing it to become known as "derp eyes" in some Internet circles. In [[TvTropesWillRuinYourVocabulary real world English]] this is called "wall-eye" or "squint", and in medical jargon "exotropia".

Sometimes however, they can be used for a more serious effect, such as showing that a characters mental stability is loosening, emphasizing an emotion (commonly anger or happiness) sometimes this is done when a character mocks another, or to emphasize that they act in a way unlike they usually do.

A particularly common form of OffModel in both hand drawn and computer generated 2D animation, especially when depicting an aside glance.

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!!Examples:

[[AC:{{Anime}} and {{Manga}}]]
* Depending on the angle, Ryuk from ''Manga/DeathNote'' can have this.
* Caster of ''LightNovel/FateZero'' has these, emphasising that he's [[AxeCrazy not the world's most stable individual]].
** He's also a walking reference to the CthulhuMythos, so it's only fitting he has the "Innsmouth look" mentioned under Literature.
* Katou from ''Manga/{{Holyland}}'', emphasising how nuts he is.
* The Gold-Toothed Doctor from ''Manga/FullMetalAlchemist'' has these behind his ScaryShinyGlasses. In his case they emphasise just how ''off' he is.
* Some of the aliens from ''Manga/{{Gantz}}'' will have this expression if their cover is blown or sustain enough heavy damage, right before dishing out horrible bloody violence. [[http://read.mangashare.com/Gantz/chapter-036/page012.html THIS]] [[http://read.mangashare.com/Gantz/chapter-062/page017.html DOES]] [[http://read.mangashare.com/Gantz/chapter-063/page015.html NOT]] MAKE THEM FUNNY! AT ALL.
* Since its unchanging CatSmile is harder to convey in manga, Kyuubey is given this look in ''Manga/PuellaMagiOrikoMagica'' to enhance its creepiness.
* When E. Honda stumbles into Balrog's chest in ''Anime/StreetFighterIITheAnimatedMovie'', Balrog's got this look before winding up to clobber him.
* Cell from ''Anime/DragonBallZ'' briefly adopted this look (complete with slobbering) after Gohan kicked him so hard [[spoiler: he vomited up Android 18.]]

[[AC:{{Film}}]]
* Ed the hyena in ''Disney/TheLionKing''.
* Maruti from ''TheReturnOfHanuman'' does this sometimes, either to show he's crazy or that it's [[OffModel because of technical problems]].
* Franchise/{{Godzilla}}, whenever portrayed by [[PeopleInRubberSuits a suit]] that had fixed eyes.
* Igor from ''Film/YoungFrankenstein'' (pictured above).
* Jeebs in ''Film/MenInBlack''.
* In ''Film/EllaCinders'', Ella does this when practicing different looks from a book on how to be an actor. She then starts moving either eye independently. It's a rather unsettling split-screen effect.

[[AC:{{Literature}}]]
* A minor character in the ''Literature/{{Discworld}}'' books is Nobby Nobbs's on-again off-again girlfriend Verity Pushpram, a fishmonger who apparently has such a bad case of fish-eyes it's earned her the nickname "Hammerhead".
* A minor character named Pounce from ''Literature/WarriorCats'': ''Ravenpaw's Path'' has this look worn all the time. He's often seen [[FunnyBackgroundEvent derping in the background.]]
* Part of the [[Literature/TheShadowOverInnsmouth Innsmouth Look]], according to HPLovecraft. [[spoiler: Makes sense, since the inhabitants of Innsmouth are slowly turning into FishPeople]].
* ''Literature/HarryPotterAndTheHalfBloodPrince'': Merope and Morfin Gaunt's eyes are said to point in different directions.

[[AC:LiveActionTV]]
* Cookie Monster of ''Series/SesameStreet'' has eyes like this. It's apparently why he's Creator/MartyFeldman's favorite Muppet.

[[AC:NewspaperComics]]
* Matt Groening's ''LifeInHell'' would use a slight wall-eye effect on characters who were despairing about something. Doubtlessly influenced the early ''Simpsons'' examples.

[[AC:{{Pinball}}]]
* Bud of ''Pinball/NoGoodGofers'' has fish eyes that regularly roll in opposite directions.
* Q*Bert has this expression in the lower-left corner of the ''[[Pinball/QBertsQuest Q*Bert's Quest]]'' playfield.

[[AC:VideoGames]]
* All passive (harmless) mobs in ''VideoGame/{{Minecraft}}''. Since eyes are only two pixels wide by one pixel tall, it was either that or crossed eyes, which ''are'' used for the default player character skin and for wolves and ocelots, to make them look more intelligent.
* Masada (or that guy with the piano) in ''VideoGame/YumeNikki''.
* A kangaroo enemy in ''VideoGame/DynamiteDux'' has these.
* Lemmy Koopa from ''VideoGame/SuperMarioBros'' has a lazy eye, that sometimes invokes this trope.

[[AC:{{Webcomics}}]]
* The dwarves in ''Webcomic/{{Oglaf}}'' sometimes have these eyes.
* [[Webcomic/RageComics Many, many]] [[http://ragefac.es/ rage faces.]]

[[AC:WebOriginal]]
* Parodied in ''WebVideo/TheAngryVideoGameNerd'' episode "Game Glitches" during the ''{{Rocky}}'' part, when [[ScrewySquirrel the Glitch Gremlin]] changes Rocky Balboa's face by making his eyes pop out, and calls him "Bug-Eyed Balboa".
* Used on a near-constant basis in ''WebAnimation/ZeroPunctuation'' to identify video game characters (and [[YouSuck video gamers]]) being stupid, either in [[ArtificialStupidity gameplay]] or [[IdiotPlot story]].

[[AC:WesternAnimation]]
* Ruby-Spears's ''WesternAnimation/MegaMan'' has had this photoshopped to the point of MemeticMutation.
* On ''WesternAnimation/SpongebobSquarePants'' this is done a few times. Most notably in the episode 'Selling Out', done by the new manager, Carl. The only time he doesn't do this is when he narrows his eyes at Mr. Krabs, but he's back to his glasgow-style smile and literal fish eyes afterwards.
* Luigi briefly wears this expression at the end of the ''[[WesternAnimation/SuperMarioBros Super Mario World]]'' episode "The Yoshi Shuffle".
* Seen a few times in ''WesternAnimation/MyLittlePonyFriendshipIsMagic'', often as a FreezeFrameBonus due to typically being [[OffModel an animation error]]:
** Derpy Hooves is an interesting case: her FanNickname (which was briefly adopted in part to be her [[AscendedFanon canon name]]) comes from this, yet she usually [[InvertedTrope inverts]] the actual trope: her eyes are seen facing ''inward'' more often than outward (but they ''do'' face outward on a few occasions, so she still counts).
** One background pony (called [[FanNickname Cloud Kicker]]) in "Griffon the Brush Off" can be seen making a crazy "shocked" face, complete with fish-eyes, when Gilda scares off Fluttershy. The same background pony makes another fish-eyed face in "Hurricane Fluttershy."
** Rainbow Dash briefly wears this expression in "Fall Weather Friends" while trying to laugh off Twilight Sparkle's suspicions.
** Pinkie Pie wears this expression during her infamous SanitySlippage in "Party of One" whenever she is puppeteering the friends that she created for Gummy's after-birthday party.
** Twilight Sparkle lapses into this several times during [[SanitySlippage her brief struggle with mental instability]] in "Lesson Zero".
** The toys of Princesses Celestia and Luna tend to suffer from this, as do the Miniature Collection toy of Zecora and the Target-exclusive plush of Twilight Sparkle.
** Purposefully averted at one point during the Season 2 finale. During [[spoiler:fake]] Cadance's song, she gives a sideways look at the audience (directly to her right) while standing in front of a mirror (directly to her left). The show's art style would have rendered this as her having fish eyes, so her mirror image's eye is closed to keep the focus on the other one. Fans sometimes cite this as an animation error, not realizing how odd she would have looked had this not been done. Basically, as the ponies have their eyes partly to the sides of their heads and not pointing directly ahead as with humans, turning one eye directly to the side makes it impossible to point the other one in the same direction. From the character's own point of view, it would seem she would have split her field of vision in two if she'd kept the left eye open, so this was perhaps {{justified}} in-universe too.
* Pops up now and again on ''WesternAnimation/TheSimpsons'', especially on earlier seasons. There's even one episode (''Diatribe of a Mad Housewife'') where Marge is trying to talk some sense into him, and his reaction is to stand there staring off into space, with one of his eyes wobbling back and forth. Then the same scene is repeated with Bart and Lisa in the same episode.
** Technically speaking, this is a design staple in various Creator/MattGroening creations, including ''WesternAnimation/LifeInHell'' and ''WesternAnimation/{{Futurama}}''.
* Ren from ''WesternAnimation/TheRenAndStimpyShow'' has them from time to time.
** MANY characters from ''Ren & Stimpy'' have fish eyes when drawn in an "off-model" way. Ren's pretty obvious, though, because he's a chihuahua.
* Done in ''WesternAnimation/TheAdventuresOfJimmyNeutron'', in the movie Attack of the Twonkies. The Twonkies often wear this expression.
* In ''WesternAnimation/EdEddNEddy'', this is [[DumbMuscle Ed's]] default expression.
* The hotelkeeper in episode 2 of ''WesternAnimation/ScoobyDooMysteryIncorporated'' has constant Fish Eyes.
* Cartoon depictions of Rodney Dangerfield sometime veer into this when he's playing stupid: see ''WesternAnimation/RoverDangerfield'' and the Genie's impression of him in ''Disney/{{Aladdin}}''.
* Megatron and Starscream [[{{Narm}} Narmfully]] don this expression several times in ''WesternAnimation/TransformersPrime''.
* On ''WesternAnimation/PhineasAndFerb'', this is the default expression of Perry the Platypus when he's in his civilian guise. In "Mom's in the House", Phineas and friends make fish-eyed expressions like Perry during the "Perrytronic" song.
* ''WesternAnimation/GravityFalls'': Grunkle Stan gets this expression a lot whenever he states a stupid plan, most notably the driving bear from "Bottomless Pit".
* Mike from ''WesternAnimation/TotalDrama Revenge of the Island'' and ''All-Stars'' always has this expression while he takes a deep breath right before one of his alternate personalities activate.
* In the ''WesternAnimation/StevenUniverse'' episode "Frybo", Steven goes wall-eyed when he zones out on an {{infodump}} from Pearl regarding some magic gem shards.

[[AC:Art]]
* Michelangelo's ''David'', believe it or not. Deliberate, because Michelangelo knew both eyes couldn't be viewed at once, and made each profile fill different artistic roles.

[[AC:RealLife]]
* Expressing these can be a symptom of [[http://en.wikipedia.org/wiki/Exotropia exotropia,]] [[http://en.wikipedia.org/wiki/Strabismus strabismus,]] or [[http://en.wikipedia.org/wiki/Graves%27_disease Graves' disease.]]
* As on glorious display above, the late Creator/MartyFeldman, a talented actor and great comedian. Of the three listed causes above, his was Graves's disease.
* Creator/GeorgeHarrison of Music/TheBeatles. That didn't seem to matter to any of his thousands of fangirls, though.
* Richard Williams of Music/{{Kansas}} sometimes has this appearance in early photos of the band. Justified in that one of his eyes was a fake glass eye (replacing an eye he lost making a homemade bomb when he was younger). Eventually he got tired of fooling around with the glass eye and started wearing an eye patch.
* The man of the "Are You A Wizard?" meme.
* [[http://imgur.com/gallery/zNIxJ The Potoo Bird]] seems consistently unable to focus both eyes on a subject in spite of its forward-facing eyes.
* Creator/ScarlettJohansson, although it's not very noticeable.
* [[https://en.wikipedia.org/wiki/Down_syndrome Down Syndrome.]]

->[[Film/YoungFrankenstein Damn your eyes!]]
->[[LampshadeHanging Too late!]]
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