Top definition
Inserting an exact replica of your cock into your woman's ass while your own cock is inserted in her vagina, or vice versa.
Dude... I bought this penis casting kit and made a latex replica of my unit. Then the other night when I was f**king Carrie from behind, I lubed it up and slid it in her ass. Totally DuoTang'ed her.
by GrouchyRodent June 20, 2016
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2
a paper binder that is painful to use because of those sharp paper holder tabs
I just cut my finger on this obsolete duotang, I should not have been such a cheap skate and bought a real binder
by Ben777 March 18, 2008
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3
A scene in a porno that involves 2 girls.
That 2 Girls 1 Cup video is the worse DUOTANG movie ever!!!
by Saints Slang July 30, 2010
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