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1.
to hold a container in an inappropriate or unconventional way, allowing the contents to become damaged or misarranged. A play on "disorientation" as well as named for the action's creator.
To carry a pizza box vertically (by your hip like a file folder) causing the fresh hot pizza to slide down to the side of the container.

"Hey! You orined the pizza!"

Also can be used as "Orining"
by The Brow July 10, 2009