A sandwhich that has three pieces of bread and two layers of filling.
Bread
Filling
Bread
Filling
Bread
Bread
Filling
Bread
Filling
Bread
A Double decker sandwhich has three pieces of bread and two layers of filling.
Bread
Filling
Bread
Filling
Bread
Bread
Filling
Bread
Filling
Bread
by tilley123456 January 3, 2014

by Orangejello Lewis November 12, 2009

Takes two people, one takes a dump in the tank of a toilet while the other faces backward on the normal toilet seat dumping while giving the tank dumper head.
Yo, eff those tool bags, they wouldn't give us any beer so Crystal and I pulled a double decker blumpkin in their master bathroom and rolled out! Try flushin that bitches!
by Vern1234 March 9, 2010

an inflatable matress the size of a queen bed. it is designed for one human to sleep on at a time. it is also a great device to get extra rest on.
Rich: hey john, where are you going?
John: oh, im heading up to the double decker to get some extra rest.
John: oh, im heading up to the double decker to get some extra rest.
by porpoise September 29, 2005

two parties gotta poop, one sits normally on the toilet, legs spread, the second sits facing the first, both have a clear shot into the toilet, both poop.
by The Turdinator2 February 28, 2011

by Miss Kay October 3, 2006

by Twin Dick June 28, 2010
