->''"Foxy does not have a brain tumor.\\
''[everyone sighs in relief.]''\\
I too would be relieved, were it not ''opposite day!''"''
-->-- ''WesternAnimation/DrawnTogether''

Describe Opposite Day here.

[[RussianReversal In Soviet Wiki, Day Opposites YOU!]] Two wrongs make a left, three negatives make a positive, a Main/SelfDemonstratingArticle is verboten, [[BigBrotherIsWatchingYou Big Brother is most certainly not watching you]], and Opposite Day is Clear and Straightforward Day!

An old children's game with the simple rule of somehow going about your day as if you were in a BizarroUniverse for twenty-four hours. In RealLife, this is highly impractical, as it's difficult to determine what, exactly, should be reversed, as well as to get others to agree to play along. Adults would be especially difficult to win over. No one can seem to agree when or how often Opposite Day is supposed to occur either, and if it happens to be today, you certainly can't tell other people that it's Opposite Day, except maybe in an Aside, making for much confusion.

Fictionland can of course employ this anti-holiday much better than actual children could ever hope to, creating much hilarity.

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˙ʎʇıɹɐןıɥ ɥɔnɯ ƃuıʇɐǝɹɔ 'oʇ ǝdoɥ ɹǝʌǝ pןnoɔ uǝɹpןıɥɔ ןɐnʇɔɐ uɐɥʇ ɹǝʇʇǝq ɥɔnɯ ʎɐpıןoɥ-ıʇuɐ sıɥʇ ʎoןdɯǝ ǝsɹnoɔ ɟo uɐɔ puɐןuoıʇɔıɟ

˙uoısnɟuoɔ ɥɔnɯ ɹoɟ ƃuıʞɐɯ 'ǝpısɐ uɐ uı ǝqʎɐɯ ʇdǝɔxǝ 'ʎɐp ǝʇısoddo s,ʇı ʇɐɥʇ ǝןdoǝd ɹǝɥʇo ןןǝʇ ʇ,uɐɔ ʎןuıɐʇɹǝɔ noʎ 'ʎɐpoʇ ǝq oʇ suǝddɐɥ ʇı ɟı puɐ 'ɹǝɥʇıǝ ɹnɔɔo oʇ pǝsoddns sı ʎɐp ǝʇısoddo uǝʇɟo ʍoɥ ɹo uǝɥʍ ǝǝɹƃɐ oʇ ɯǝǝs uɐɔ ǝuo ou ˙ɹǝʌo uıʍ oʇ ʇןnɔıɟɟıp ʎןןɐıɔǝdsǝ ǝq pןnoʍ sʇןnpɐ ˙ƃuoןɐ ʎɐןd oʇ ǝǝɹƃɐ oʇ sɹǝɥʇo ʇǝƃ oʇ sɐ ןןǝʍ sɐ 'pǝsɹǝʌǝɹ ǝq pןnoɥs 'ʎןʇɔɐxǝ 'ʇɐɥʍ ǝuıɯɹǝʇǝp oʇ ʇןnɔıɟɟıp s,ʇı sɐ 'ןɐɔıʇɔɐɹdɯı ʎןɥƃıɥ sı sıɥʇ 'ǝɟıן ןɐǝɹ uı ˙sɹnoɥ 42 ɹoɟ ǝsɹǝʌıun oɹɹɐzıq ɐ uı ǝɹǝʍ noʎ ɟı sɐ ʎɐp ɹnoʎ ʇnoqɐ ƃuıoƃ ʍoɥǝɯos ɟo ǝןnɹ ǝןdɯıs ǝɥʇ ɥʇıʍ ǝɯɐƃ s,uǝɹpןıɥɔ pןo uɐ

¡ʎɐp pɹɐʍɹoɟʇɥƃıɐɹʇs puɐ ɹɐǝןɔ sı ʎɐp ǝʇısoddo puɐ 'uǝʇoqɹǝʌ sı ǝןɔıʇɹɐ ƃuıʇɐɹʇsuoɯǝp ɟןǝs ɐ 'ǝʌıʇısod ɐ ǝʞɐɯ sǝʌıʇɐƃǝu oʍʇ 'ʇɟǝן ɐ ǝʞɐɯ sʇɥƃıɹ ǝǝɹɥʇ 'ıʞıʍ ʇǝıʌos uı

-->[[WesternAnimation/DrawnTogether ɹǝɥʇǝƃoʇ uʍɐɹp]]-\\
"¡ʎɐp ǝʇısoddo ʇou ʇı ǝɹǝʍ 'pǝʌǝıןǝɹ ǝq pןnoʍ ooʇ ı\\
[˙ɟǝıןǝɹ uı sɥƃıs ǝuoʎɹǝʌǝ]
-->˙ɹoɯnʇ uıɐɹq ɐ ǝʌɐɥ ʇou sǝop ʎxoɟ"