Colossal block party occurring annually, usually the second to last weekend prior to finals, on Mifflin Street in Madison, Wisconsin.
"Wow dude, I got so fucked up at Mifflin!"
"Yeah bro, me too! I was doing a beer bong when I saw some girl fall off a balcony!"
"Yeah bro, me too! I was doing a beer bong when I saw some girl fall off a balcony!"
by wiscvic3 May 07, 2009