The act of wearing a life jacket upside down like a diaper in order to make your upper body less constricted. This is usually done while drinking copious amounts of Pabst Blue Ribbon or other inexpensive beers in an ocean or lake.
We had a blast on JB's boat the other day. We were just diapering all day in the lake ripping Blue Ribbons.
by sillyrascal August 22, 2010