1 definition by Rarathelunchman
The first day--usually a couple of weeks after the start of spring in areas which experience significant seasonal variation (such as the northeast US)--on which a large majority of girls and women wear their newest skirts. This occurs en masse, leading one to blurt, "Oh, thank God for Skirt Day." Skirt Day generally occurs on the second or third day of consecutive, skirt-encouraging weather in a week (at least mid-60s, winds < 10-15mph).
I woke up this morning, strode outside, saw dozens of beautiful girls in skirts on the way to class, said a brief thank-you to God for their smooth and fit legs, and promptly declared to my friends, "Today ... is Skirt Day."
by Rarathelunchman April 4, 2009