You meet yourself somehow, through TimeTravel, [[AlternateUniverse dimension-hopping]], [[CloningBlues cloning]], or some even more exotic form of AppliedPhlebotinum. Inevitably, if you spend enough time in the same room as yourself, the two of you will end up speaking in unison.

The implication isn't usually that there's any kind of mystical connection between the different versions of you. It's just that whatever you're saying is so characteristic of you that any possible version of you would have said it at that time.

See also SingleMindedTwins. Related to SomethingOnlyTheyWouldSay.



[[folder:Fan Works]]
* ''FanFic/AChanceMeetingOfTwoMoons'': Luna and Artemis do this when they first meet, and it happens again in chapter 5. Twilight and Dusk Shine later have the same thing happen when ''they'' meet. Celestia and Solaris also fall into it at one point, but only when they're flustered.

* A bizarre version occurs in ''Film/BillAndTedsBogusJourney''; the two ''aren't'' the same person, but they're so close in personality they might as well be; so when they split off to propose to the [[EverythingsBetterWithPrincesses princesses]], they read out the same speech, changing only the basic metaphor (one of them uses ocean life, the other forest; they even both have a 'no, that's fresh water' / 'no, that's the desert' moment in unison.
** There's also the point where present Bill and Ted meet future Bill and Ted (or the same scene later in the film where [[TimeyWimeyBall present Bill and Ted are now the future Bill and Ted meeting past Bill and Ted]]):
--> Present B&T: 'If you're really us, what number are we thinking of?
--> Future B&T, in unison: 'Sixty nine, dudes!'
* Similar to the above ''Film/BillAndTed trope'', but for a blink-and-you'll-miss-it NotSoDifferent: In ''Disney/TreasurePlanet'', when Jim is put in Silver's care, both pinch the bridge of their respective noses at the exact same time, then look up with the same expression.
* ''Film/The6thDay'': Adam Gibson teams up with his clone. They're mixing up some thermite and one of them decides to test-burn some of it. They watch as it burns through the table.
-->'''Adam Gibson''' and '''Adam Gibson''': Cool.

* The main character of ''The Probability Broach'' by L. Neil Smith does it on one occasion, when in the company of his alter ego from another timeline.
* In ''Literature/StarTrekDepartmentOfTemporalInvestigations'': ''Watching the Clock'', President Bacco is temporarily duplicated (long story). The two presidents respond to a compliment with a simultaneous "Oh, please!" Amusingly, they also snark at each other for making the exact sort of grumpy, sarcastic comments that Bacco always makes.
* A variant in Creator/JohnWCampbell's story "Literature/TheBrainStealersOfMars": Ted Penton and Rod Blake encounter {{shapeshifting}} aliens who impersonate them, and they have to {{spot the imposter}}s; because the aliens can read minds, they can flawlessly imitate what Penton or Blake would say. It's not long before all twelve Pentons start speaking and acting in unison. Blake, on the other hand, is more uncertain, and the Blakes argue with and contradict one another despite all having access to the same mind.

* In the ''Series/StarTrekDeepSpaceNine'' episode "Visionary", O'Brien meets himself from five hours in the future. At one point they chorus "I hate temporal mechanics."
* The ''Series/{{Dollhouse}}'' episode "The Left Hand" sees Topher downloading a second copy of himself into Victor.
-->'''Adelle''': Finding him obstinate, are we?
-->'''Topher''' and '''Victor''': Yes! ''(pause)'' This is ''so'' weird.
* ''Series/StargateSG1'':
** In "Tin Man", O'Neill and his robot duplicate get to chorus "[[CatchPhrase For cryin' out loud!]]"
** In "Fragile Balance", O'Neill gets cloned; his clone is a 15-year-old boy. When they meet up at the end of the episode and interrogate the alien who did it, they start answering him in unison. Eventually, the original O'Neill gets annoyed and tells his clone to knock it off.
* In the ''Series/BuffyTheVampireSlayer'' episode "The Replacement", Xander gets [[LiteralSplitPersonality split into two beings]]. When they meet at the end just before being rejoined they have a tendency to speak together.
-->'''Buffy:''' What if it doesn't work?\\
'''Xanders:''' Kill us both, Spock!\\
'''Willow:''' They're kind of the same now.\\
'''Giles:''' Yes, he's clearly a bad influence on himself.
* Done with actions in ''Series/{{Heroes}}'', such as Hiro being in the background of Young!Hiro as both push up their glasses at the same time in the same way.
* ''Series/DoctorWho'':
** When Mickey and his parallel-universe counterpart Rickey are running away from Cybermen in "The Age of Steel", they stop to catch their breath and each go off in [[OneSceneTwoMonologues their own panicked monologue]], culminating in a unison recitation of "They know where we are!"
** Done again in Series 6, with The 11th Doctor and "11.5", a clone created from sentient goo. They both have all the same memories and thought processes, leading to them almost always finishing the other one's sentences and saying the same thing at the same time. They actually don't mind, but it annoys Amy.
* Played for drama in ''Series/{{Farscape}}'', when [[spoiler:Crichton]] gets twinned, and the two talk and think so alike that when they resort to RockPaperScissors to decide which one is real, they end up spending several hours tied, before giving up. [[spoiler: After one of them dies and sends the other a holographic message, it ends with the hologram and living one playing RockPaperScissors and ending up tied again.]]
* In the ''Series/RedDwarf'' episode "The Inquisitor", Lister gets replaced by an alternative version of himself who never got to exist. When they meet each other, the original Lister is in the middle of trying to convince Rimmer of who he is, and the two end up chorusing "Rimmer, for smeg's sake!"
* ''Series/{{Fringe}}'': Astrid and Alt!Astrid meet and, though [[AmbiguousDisorder very different in some ways]], find themselves frustratedly making the same exclamations four times in a row

* ''VideoGame/ChronoCross'': When you hop from Serge's "Home" dimension to "Another," certain of your party members can meet their alternate counterparts, and this is an occasional result.

* In ''Webcomic/BasicInstructions'', Scott meets himself (without a precise explanation of how), and soon the two of them unintentionally (and to their mutual annoyance) mirror each other.

* In the AnimatedAdaptation of ''WesternAnimation/MenInBlack'', when Jay first sees his quick clone, they say in unison "He's stunning!".
* ''{{WesternAnimation/Futurama}}'' has a variant when Leela encounters her double; they're not actually simultaneous, but...
-->'''Robot Leela''': I have to go. This is just too freaky! ''(storms out)''\\
'''Fry''': Please don't get upset, Leela. She's nothing like you!\\
'''Leela''': I have to go. This is just too freaky! ''(storms out)''
** There was also their failure to solve a problem with perfectly symmetrical violence-- simultaneous flying kicks to each other's faces.
* In ''WesternAnimation/PhineasAndFerbTheMovieAcrossThe2ndDimension'', this happens three times between Dr. Doofenshmirtz and his [[NotSoHarmlessVillain more evil]] double in the other dimension. Each time, Doofenshmirtz-1 {{lampshade}}s it by shouting "Jinx!" and claiming that Doofenshmirtz-2 owes him a soda.