When you take a deuce in the upper tank of the toilet. Leaving the owners to believe the toilet is broken, since the water comes out brown and pieces of fieces. This continues until someone either scoops it out of the upper tank or it dissolves.
Usually happens at mad crazy house parties or when someone mad dogs another person and allows them to use their bathroom.
By Mimi
Double Decker
When you sit on your homie’s shoulders with your nuts in his face and shit through the space in between his legs.
Yo, me and devon dropped a steaming double decker earlier in the church bathroom!
By Roseanne
Double Decker
a classic taco within a taco: placing a fleshlight inside a woman's vagina, then placing penis inside
While taking a duece you realize you need to puke. You cannot reposition yourself so you puke while duecing, therefore you are flowing from both floors, the doubledecker.
an inflatablematress 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 doubledecker to get some extra rest.
By Gay
Double Decker
To leave an Upper Decker in the toilet tank, and to leave a Floater in the bowl. This can either be a two-man job, or performed by a single person who breaks his payload into two segments. The result is that the water in the bowl will be brown, and the water that comes from the tank during a flush will also be brown.