A party attended by 6-12 people where the main entertainment is raucous banging and crazy group sex. The term comes from the colleges of Michigan's upper penninsula, particularly Northern Michigan University. During the winter, when the schools get snowed in, the only entertainment available is a crazy orgy.
"Hey, Emily, I hear it's going to snow this weekend. You down for a Wisconsin Rodeo?"
by dodgeball god March 03, 2012