For those who have never heard of Dyngus Day or don't know anything about it and are to lazy to read through the Wikipedia description in the link provided, Dyngus Day can best be described as a combination of Mardi Gras and St. Patty's Day.
It's a Polish holiday that falls on the Monday after Easter and is celebrated with lots of Polka music, beer, Polish food, water pistols and pussy willows.
Only a handful of cities in the U.S. have Dyngus Day celebrations and Buffalo is known for having the biggest and the best one in the world. There's a long list of events that take place over the course of the day spread throughout Buffalo including a parade at 5, but party central is located by the Central Terminal.
Parking can be tough at times so carpooling is recommended.
So find your best red and white party attire and a squirt gun or pussy willow.
( http://en.wikipedia.org/wiki/%C5%9Amigus-Dyngus )
Schedule of events