If you're not wearing pink today,Watch Taming A Sex Man Online sorry to say it, but "you can't sit with us."

For those of you unfortunate human beings who haven't seen Mean Girls, allow me to explain why Oct. 3 is the most important holiday in our society. It all stems from a scene in the movie where Cady Heron, who is played by Lindsay Lohan, tells her crush Aaron Samuels the date, and it was Oct. 3.

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On top of that, The Plastics (the group of girls who Cady is kinda forced into) make it a rule that on Wednesdays they must wear pink. So having Oct. 3 land on a Wednesday this year is literally the ultimate formula for the best Mean Girls Day ever.

And Twitter was obviously so here for it.

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Other users really took their pink game to unexpected levels that would impress Regina George (maybe). Even Burger King got the memo.

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And of course, you can't have a true Mean Girls Day without a ton of memes.

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Happy Oct. 3 everyone! May your outfits be pink, and may "fetch" remain a thing that never really happens.