For fans of the cult classic Mean Girls, October 3 is celebrated as Mean Girls Day.
Deep Dive
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The date comes from the movie scene where Cady’s crush asks, “What day is it?” and she answers, “It’s October 3.”
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Fans mark the day by quoting the film, sharing memes, and rewatching the movie. If you are short on time, Ariana Grande’s thank u, next video includes a quick tribute with several iconic moments.
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Pink is the unofficial dress code. It nods to the Plastics’ rule: “On Wednesdays we wear pink.” When October 3 lands on a Wednesday, the holiday feels extra on theme.
How people celebrate
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Wear pink and post a selfie with a favorite quote
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Host or join a group watch party online or IRL
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Share Burn Book style memes, “you can’t sit with us” jokes, and fetch references
Popular hashtags
#MeanGirlsDay, #OnWednesdaysWeWearPink, #October3rd, #SoFetch
Why it endures
The film’s one liners, teen politics, and quotable script keep the fandom active year after year. October 3 gives everyone a playful excuse to be a little plastic, in the best way.