A duplex lived in by a group of young guys who never clean up, never throw away garbage, do not do any dishes and whose sink is always clogged. A Dirty Duplex is completely disgusting, smells rancidly at all times and guests can never be brought over to visit.

This guy from work showed me pictures of the Dirty Duplex he lives in and it made me want to puke.

Dirty Duplex by GSP January 1, 2008

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duplex cookies

The best mother fuckin cost-efficient cookie ever made.

Amanda: When you go to the store please buy me some chips ahoy.

Joey: Fuck that! All I have is 80 cents so I'm gettin some duplex cookies sandwich cremes.

duplex cookies by bama_slammer February 25, 2012

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Milwaukee Duplex

When a guy stacks two women on top of each other and is able to have vaginal sex with both of them during a threesome. If the guy gives either or both girls a creampie the duplex is said to be occupied, otherwise, it is considered vacant. The girls can be stacked in any manner; front-back, front-front, or back-back and they can face upward or downward.

"I was able to fuck Gina and Brooke in a Milwaukee Duplex. I occupied both of them; I hope they are on the pill!"

Milwaukee Duplex by Milwaukee Guy December 29, 2008

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