Galentine’s Day is a holiday Amy Poehler’s Parks and Rec character Leslie Knope created that occurs every year on Feb. 13, the day before Valentine’s Day. As Leslie herself explains on the show:
“Oh, it’s only the best day of the year. Every February 13th, my lady friends and I leave our husbands and our boyfriends at home, and we just come and kick it, breakfast-style. Ladies celebrating ladies. It’s like Lilith Fair, minus the angst. Plus frittatas.”
Basically, it’s like Valentine’s Day, only instead of celebrating the love you have for your significant other, you spend it with your best girlfriends who deserve a holiday all to themselves, too. Since the episode aired in 2010, it’s become just as big a deal as its Valentine’s Day counterpart.
The Lady Project would celebrate every year by creating e-card that could be shared (or printed) to all your favorite ladies. It became a great tradition.