If you happen to think Halloween is October's most important holiday, think again. Ever since the iconic line, "It's October 3rd" was uttered by a fresh-faced Lindsay Lohan in Mean Girls, that fateful date has been universally recognized as "Mean Girls Day". Even Lindsay Lohan decided to acknowledge the holiday by posting a series of Mean Girl-related Instagrams, including one in which she alluded to a possible sequel to the cult teen comedy called Mean Moms. "I'm trying to make it happen," she wrote. Now the question is, how are YOU celebrating Mean Girls Day?

 

It's October 3rd FYI #meangirlsday

A photo posted by Lindsay Lohan (@lindsaylohan) on Oct 3, 2015 at 6:19am PDT