Since then, October 3 has been celebrated by fans of the film everywhere as "Mean Girls Day," and despite Lohan's questionable behaviour as of late, this year is no different.
If anything, this year is particularly special because October 3 falls on a Wednesday, and all Plastics know that "on Wednesdays, we wear pink."
As such, fans, brands and actors from the film alike have gone wild on Twitter and Instagram, sharing memes and quotes from the movie.
14 years ago today, I asked @lindsaylohan what day it is. #MeanGirlsDay pic.twitter.com/4mzCwatILg
— Jonathan Bennett (@JonathanBennett) October 3, 2018
Today it's like an extra solar eclipse. October 3rd and a Wednesday. This will happen again in 2029 #MeanGirlsDay pic.twitter.com/8MmdXYDcR9
— anal (@vyctordelrey) October 3, 2018
If you don't eat corn nuts you will get pregnant and die #MeanGirlsDay
— CORN NUTS (@CornNuts) October 3, 2018
Trying to make fetch happen. #MeanGirlsDay pic.twitter.com/s89fGOJXOA
— Morris Animal Refuge (@MorrisAnimal) October 3, 2018
In celebration of #MeanGirlsDay, check out these fetch #UofT campus photos where the cult movie classic was filmed. 💖 https://t.co/8lU80T21LT pic.twitter.com/UiQaqV51iH
— University of Toronto (@UofT) October 3, 2018
You CAN sit with us! 💺💕#MeanGirlsDay #October3rd pic.twitter.com/1GuIpuh3z3
— DXRacer 💺 (@DXRacer) October 3, 2018
Hope you're wearing pink! #MeanGirlsDay pic.twitter.com/Qe8bItrZ4i
— FashionNova (@FashionNova) October 3, 2018
On Wednesdays we wear pink... 😏 #MeanGirlsDay
— Columbia Records UK (@ColumbiaUK) October 3, 2018
(CC: @Harry_Styles) pic.twitter.com/XUFxObgP6i
Raise your hand if you've ever felt personally victimized by Regina George. 🙋 #MeanGirlsDay pic.twitter.com/QbKIJ0RUK3
— E! News (@enews) October 3, 2018
RT to let your timeline know what day it is. It's October 3rd. #MeanGirlsDay pic.twitter.com/hQXLitpstS
— U.S. Soccer WNT (@ussoccer_wnt) October 3, 2018
I'm not just a regular Mom, I'm a cool Mom. Stacey's Mom ain't got nothing on me! #MeanGirlsDay 🌸 pic.twitter.com/2Yx1vdxsnE
— Shellie (@dirtroaddiva1) October 3, 2018
Happy #MeanGirlsDay 💕💋 on Wednesdays we not only wear pink, we read pink too! pic.twitter.com/Geaf396gGg
— booktopia (@booktopia) October 2, 2018
It's October 3rd. pic.twitter.com/a6xUMO1qoi
— Ira (@ira) October 3, 2018
If that's not enough excitement for the mean girl in you, head over here to find a list of screenings at Cineplex cinemas across Canada today.
In conclusion, "You go, Glen Coco!" You go out there and keep trying to make "fetch" happen for another year.