When two people have tubes in there asses and shit in the same tube at the same time.
Guy: Hey baby you wanna get kinky? Go grab the tubing from the garage.
Girl: What for?
Guy: a michigan transfer.
Girl: What's that.
Guy: It's where we both shit in a tube.
Girl: ok!!! I'll be right back.
by Polak117 April 2, 2007
Get the Michigan Transfer mug.