Duplex 

A duplex communication system is a system comprised of two connected parties or devices which can communicate with one another in both directions. (The term duplex is not used when describing communication between more than two parties or devices.)

Example of an duplex device: Phone

Duplex by 02k^ November 9, 2006

Duplex 

Two separate turds coming out of your asshole at the same time.

Ahh, fuck It's a duplex.

Duplex by Cherylyn17 May 8, 2011

duplex 

When a woman gets the thin piece of skin between her anus and her vagina removed creating one large orifice.

I went to go down on that chick and found out she has a duplex!

duplex by Drowsy Hollar March 2, 2008

Duplex 

When one person sits down to take a shit, and another person sits on top of that person and shits through their legs.

Suzie was pooping on the toilet and John sat on her lap and did the same. They performed the Duplex.

Duplex by Brian Brown November 19, 2004

duplex 

Half finished housed that are normally found in the projects or ghetto because the construction workers were scared off by the two black guys who stare at them all day.

I live in duplex, i hate winter...

duplex by freshman October 10, 2003

duplex 

2 gay men stacked on top of eachother

the men were doin it suplex style

duplex by tim September 6, 2003

duplex 

The process of wiping one's own butt with both hands, front and back, at the same time.

I had to duplex my wiping process to save time after I took a sloppy dump.

duplex by Plerk December 1, 2017