A sandwhich that has three pieces of bread and two layers of filling.

Bread
Filling
Bread

Filling
Bread
A Double decker sandwhich has three pieces of bread and two layers of filling.

Bread
Filling
Bread
Filling
Bread
by tilley123456 January 03, 2014
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When one takes a dump on another person's body (like a steamer) but followed by another person taking a dump on the original dump. More is better...
After completing the steamer, she needed more so I asked my buddy to give her a double decker steamer.
by Billy Bob Ray October 07, 2010
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The act of taking two perverts, preferably of the same sex, and laying them on top of eachother while tying their arms and legs together and letting them do as they please.
Trade marked by Tyler Coley™️
tonight me and my girl/boy friend are going to do a new position, the double-decker whore
by Ty.Coley November 09, 2018
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When you get your date home and realise you don't have any condoms but do have a but plug.
The butt plug is placed in her vagina and you proceed to have anal intercourse.
"I wasn't ready to be a dad, so we did the emergency double decker
by bigscousechris January 28, 2020
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Woman (or man) who has breasts, but also has a ring of fat over the top of the pants, giving the illusion that they have two rows of breasts.
Check that out, she's got double decker tits! So big that they had to make her a double decker.
by bpt January 18, 2009
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have two girls that are capable of shooting cum then have them cum and somehow put their pussies together and mush the cum together and then put some ham and mayo and lettuce and tomatoes in between their pussies and a guy eats all of the food with the chicks cum all over the food it makes a double decker sandwich; sort of; and has all the oozy cum you can eat...
double decker pussy is a great snack
stephanie and emily cummed on each others pussies and it was goey and then they put sandwich items in between their pussies and cody ate it all and puked on their titties
double decker pussy is a great snack
by Wu Zi Mu July 31, 2006
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