Two Shit Tradeoff 

when one person places his anus right onto their partners anus and defecates in the partner's anus. The partner then defecates the feces back into the original anus. The two take turns shitting into each others asses

Dude me and my gf just did a Two Shit Tradeoff

Two Shit Tradeoff by Mallikizzle August 4, 2008

trade off 

n.
An exchange of one thing in return for another, especially relinquishment of one benefit or advantage for another regarded as more desirable:

a fundamental trade off between capitalist prosperity and economic security

trade off by ArisenAhubudu April 8, 2011

Fail-Nail trade off 

When you begin to fail a class or classes because you are too preoccupied nailing your girlfriend. Most would consider this a good trade.

Petus: "hey, did you hear that (insert name here) is failing spanish?"

Tony: "It's because he's too busy with his gf. This is all a very standard Fail-Nail trade off."

Fail-Nail trade off by Psas May 7, 2009

pussy trade off 

Your girl asks you for $100 and you know you'll never get it back, but you get it back in the form of sex from her.

"My girl asked for $50 bucks to go to a movie. It's a pussy trade off because I'll get her pussy later"

pussy trade off by Rich white guy April 17, 2014

West Virginia Trade-Off 

The West Virginia Trade-Off is when three people are involved in sexual intercourse, preferably two guys and one girl. One guy is on the bottom getting ridden by the girl while the other guy proceeds getting a blow job and his asshole eaten out by the guy on the bottom. This act forms a triangular figure that is impeccable to all other sexual positions.

Dude, my asshole is really raw from that West Virginia Trade-Off last night!

West Virginia Trade-Off by Jimmy Willshire December 27, 2010

Toblerone Trade-off 

To stand ass-to-ass with another person while transferring a stiff turd from one anus to another. Nougat and caramel not needed...

Hey bro, you bored? Hows about you come on over after work and we do a toblerone trade-off????

Toblerone Trade-off by Filthy fly February 27, 2019