Brown Elephant Exchange 

When two people put their anuses together, one person defecates (preferably a solid log), while the other relaxes to receive the gift into their rectum.

Derived from the "White Elephant" (a crappy gift - pun intended), the Brown Elephant Exchange also illustrates the exchange of items from one elephant trunk to another.

This maneuver is typically only performed by experts.

After Tad and Charles cut their teeth mastering the rusty trombone, they joined the big leagues by completing a successful Brown Elephant Exchange.

Brown Elephant Exchange by Matt-tastic January 1, 2013

armani exchange 

The most affordable "armani" of them all, carrying the logo A|X, generally geared toward the metro/uber_sexuals, and high middle and upper class young stylish audience. Their clothes are often fitting for the night life; and their most notable items are the super nice jackets, especially those moto-style jackets for both sexes, of which they offer many different designs each season.

A: Damn, that motojacket looks so nice and stylish!
B: Thanks, it's from Armani Exchange.
A: Now you're just missing a motorcycle.

armani exchange by Andy Cao January 20, 2006

The French Exchange

A situation where 2 people simultaneously perform the cupcake movement on each other after farting at the same time. The exact opposite of barter, due to it being 'a double coincidence of do not wants'

"I trust last night went well, Sir?"

"Bally terrible unfortunately Jeeves, i was planning to cupcake Aunt Agatha and at the very moment I gave it to her she turned and gave me one right back!"

"Ah, 'The French Exchange' Sir, a rare and exotic beast"

"Quite, Jeeves, quite- i've half a mind to leave her my Richmond Regards"

"Very good Sir"

From Jeeves and the Bottomist by P.G. Wodehouse

The French Exchange by Captain Tomson June 1, 2010

monroe exchange 

Similar to a monroe transfer, however, both partners have the same tube up their asses and they both defecate. In the case of diarrhea, some poo may be "exchanged" into each others rectum. Most enjoyable.

Paul and Patty decided to try a Monroe transfer but the tacos they ate the night turned it into a Monroe exchange.

monroe exchange by Q Daddy December 15, 2008

Gasheous Exchange 

The act of buying, selling or trading girls of an equal value to your expense.

Person 1: Hey, Want to do some gasheous exchange?
Person 2: Okay then, I only have £10 and a dirty girl at the moment though.
Person 1: Thats fine, add them together and we can find you something decent.

Gasheous Exchange by Brimmy April 25, 2009

Pie exchange 

1) n. compensation for stolen girl scout cookies.

2) v. the process of having a senior citizen mud butt in someone's hand and then throwing at on the first seen innocent girl scout.

1) We must conduct a pie exchange you rat bastard!
2) When I get my AARP card we are pie exchange errybody.

Pie exchange by slippery dingo March 8, 2011

polish exchange 

During a threesome with two men and a female; the act of your buddy maneuvering the females head while she is performing fellatio. Similar concept as the Dutch rudder

I saw Kevin performing a polish exchange on Ron using Sally's head.

polish exchange by Street sweeper April 11, 2015