->'''Cowardly Lion:''' What have they got that I ain't got?\\
'''Dorothy, Scarecrow, Tin Woodsman:''' Courage!\\
'''Cowardly Lion:''' You can say that again! Huh?
-->-- ''Film/TheWizardOfOz'' (1939)

A character says something, and another character will express agreement by saying "YouCanSayThatAgain."

In comedy, the first character [[LiteralMinded often takes it literally]] and really does [[RepeatAfterMe ''say it again'']].
Bonus points if the first character is a robot, who says it again because it is unable to catch the real meaning and interprets the statement as an order. ''Extra'' bonus points if the word the first character says again is "that."

[[AC:{{Anime}} and {{Manga}}]]
* In ''Anime/SamuraiPizzaCats'' Guido almost does this joke, until Polly stops him by saying 'Guido!'

* Used in the ''LightNovel/HaruhiSuzumiya'' fanfic ''Fanfic/KyonBigDamnHero'' when Kyon is taking out the garbage:
-->'''Kyon's father:''' Oh, da- Uh, shoot, I mean, I was going to do that.
-->'''Kyon:''' Lost your excuse to sneak out and grab a smoke without mom noticing?
-->'''Kyon's father:''' What she doesn't know won't hurt her.
-->'''Kyon:''' You can say that again.

[[AC:Film -- Animated]]
* In ''Disney/AtlantisTheLostEmpire'' Kida sees something amazing and says the Atlantean equivalent of "wow!" Milo is also amazed, and savvy enough with the language to say "You can say that again!"

[[AC:Film -- Live Action]]
* In ''AFewGoodMen'', Tom Cruise's character trades clichés with the guy at his newsstand, resulting in this exchange:
-->'''Luther:''' It ain't over till the fat lady sings.
-->'''Kaffee:''' You can say that again.
-->'''Luther:''' It ain't over till the fat lady sings.
-->'''Kaffee:''' (with him) Fat lady sings. I walked into that one.
* Film/TheThreeStooges in the short ''Micro-Phonies'', as they see a beautiful woman:
-->'''Curly''': My, ain't she pretty!
-->'''Moe''': Boy, you can say that again!
-->'''Curly''': My, ain't she pretty!
-->'''Moe''': Shut up! (''slaps him'')
* ''Film/TheRoom'': In response to the "what a story, Mark!" line.
* ''Film/{{Stalag 17}}'':
-->'''Harry:''' I tell ya, Animal, [[ThoseWackyNazis these Nazis ain't kosher]].
-->'''Animal:''' You can say that again.
-->'''Harry:''' I tell ya, Animal, these Nazis...
-->'''Animal:''' (''angrily'') I said you could say it again, that doesn't mean you have to repeat it!

* One play by Creator/EphraimKishon.
--> Kibbuznik #1: "How do you want the money?"
--> Saadya Shabatai: "In cash."
--> Kibbuznik #1: "Oy."
--> Kibbuznik #2: "YouCanSayThatAgain."
--> Kibbuznik #1: "Oy."
* SleepingPlanet by Walter Burkett: "I know that I can say it again. There is no just-developed impediment to my speech. Do you wish me to say it again?"

* A sketch of ''Series/TheAmandaShow'' about a family called The Literals. Amanda, as the Literals' daughter, is talking with another girl.
-->'''Girl''': Knock it off.
-->'''Amanda''': All right. (knocks a vase off the mantle) Hey, the vase broke.
-->'''Girl''': You can say that again.
-->'''Amanda''': Hey, the vase broke.
* Occurred on a few occasions in ''Series/TheTomorrowPeople'', each time with someone "saying that again!".
* The captions in the ''Series/MontyPythonsFlyingCircus'' sketch about the relevance of penguins in science when Professor Ken Rosewall (Graham Chapman) points out that the BBC Programme Planners' IQ test score against the penguins' score was explained by being within the ordinary limits of statistical error.
-->'''Rosewall:''' One particularly dim programme planner can cock the whole thing up!
-->'''Caption:''' You can say that again!

[[AC: {{Theater}}]]
* In Essgee's 1994 production of ''ThePiratesOfPenzance'', the exchange is extended:
-->'''Sergeant:''' This is perplexing!
-->'''Policemen:''' You can say that again.
-->'''Sergeant:''' This is perplexing!
-->'''Policemen:''' You can say that-
-->'''Sergeant:''' AH! (Stares the others into silence)

* In ''Spandex Force'' after you "cure" a certain villain's speech problems he turns out to be a good guy mistaken as evil, which prompts the following exchange.
-->'''Player Character''': I guess this was all a big misunderstanding from the beginning.\\
'''Professor Aphasia''': You can say that again.\\
'''Player Character''': I guess this was all a big-\\
'''Professor Aphasia''': Please stop that.

* ''WesternAnimation/SpongeBobSquarePants'': Spongebob utters the line in the episode "The Two Faces of Squidward", after Patrick says "We're not just neighbors...", and Patrick, [[TheDitz as one might expect]], follows through.
* Done in the ''WesternAnimation/DonkeyKongCountry'' cartoon.
* Occurred in the ''WesternAnimation/JonnyQuest'' episode "The Invisible Monster".
* A RunningGag on ''WesternAnimation/TheBackyardigans'': One of the characters would say something, another would say this phrase, the character does say it again, and all visible characters collectively laugh.