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 4, 2014
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A simultaneously prolapsing asshole and vagina of a woman after double penetration sex.
Yo dude Sandra had a "Double Decker Sandwhich" after I banged her with Tyrone.
by prematurejaculator November 29, 2019
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