Sundress Day 

The first day that the weather warms up, when suddenly women appear everywhere in light, revealing, summer dresses. Usually in early Spring in the Northern Hemisphere. A day greatly anticipated by people who wear dresses and those who gawk at them.

Damn, better wear my loose trousers - according to those girls in the quad, it's Sundress Day.

Sundress Day by marriedtopotatoes March 22, 2007

National SunDress Day 

The Day Where We see a awhile Lot Of Booty In Them Mf Dresses

You Seen That sundress Its National Sundress Day Foreal

National SunDress Day by You Don't Grab My Dick April 13, 2019