Exhaust Pipe 

Fellatio performed on a male when he is bent over and has his genitals tucked between his legs, pointing straight backwards. This allows the person performing this act to get a face full of butt while blowing the male and the male can expell any and all bodily fluids and odors behind him onto the person performing the act. Which fluids and odors expelled are up to personal preference with none also being an option.

Why is our neighbor bent over the couch? Probably getting ready to give his wife the ol' exhaust pipe fix.

Exhaust Pipe by MacFlak January 5, 2018

Exhaust Pipe 

When a girl is giving a guy a rim job and he shits in her mouth.

My girlfriend was giving me and a rim job and I had to go shit and didnt want her to stop so I decided to give her an Exhaust Pipe.

Exhaust Pipe by rysilver September 25, 2009

Exhaust Pipe 

The act of blowing a hit or weed into someone's ass and having someone else human centipede those mud flappers and sucking that toke with a hearty fart.

Garrett: hey bro heard Kelsey was pretty freaky . What y'all do?

Hussein: yeah bro she let me exhaust pipe her.

Garrett: did you get a turd too?

Hussein: totally.

Garrett: niceeeeeee

Exhaust Pipe by CHTS June 18, 2016

Canada Exhaust Pipe 

When it is so cold outside that when one farts, water vapor is seen from the farters ass. Exactly like a cars muffler in winter.

Dude: Fuck it's cold as shit outside!
Guy: No shit, I saw folks leaving church this morning and this one dude was kind enough to hold his fart the entire service. He definitely had a Canada Exhaust Pipe.

Canada Exhaust Pipe by WholePriest December 30, 2011

Louisiana Exhaust Pipe 

When you are fucking a girl doggystyle and you piss in her ass, and then she lets out a sputtery piss fart.

McGee gave Sab a mean Louisiana Exhaust Pipe last weekend in New York!

Louisiana Exhaust Pipe by Monkey Fuckers April 23, 2019

Canadian Exhaust Pipe

Firstly a man must stick his own index finger into his pee hole up to the first knuckle. Then slowly remove index finger and insert a lit cigarette (filter first). Quickly begin to have rigorous and sweaty buttsex with another man. If the cigarette falls out of the first mans pee hole the partners must then switch positions. This act continues until either a.) You use an entire pack of cigarettes or b.) you ejaculate onto cigarette. If scenario b occurs the ejaculator then makes the other partner smoke the cum drenched cigarette.

It took Matt and Dave 4 hours to finish their Canadian Exhaust Pipe.

Canadian Exhaust Pipe by BOATS! July 30, 2009

rusty exhaust pipe 

To have a rusty exhaust pipe is an expression which is usually used as an excuse to pardon one's own inability to keep one's anus clean/one's bottom shaved for pleasurable anal sex.
It can be said in front of one's partner both in a homosexual and heterosexual relationship.

However, the actual fact if the stated is really true or not is not important. The affected person is rather able to express himself/herself by using euphemistic vocabulary and thus without using derogative language.
Therefore, persons employing this excuse might also be trying to cover their sheer weariness or laziness to have anal sex with their partner for personal, moral or whatever reasons.

possible forms to say:
- to have a rusty exhaust (pipe)
- to suffer from a rusty exhaust (pipe)
- to have rust in one's exhaust (pipe)
(etc.)

"Come into the bed already, Antonia. I need you here urgently."
"Sorry, cutie, not this time. I've got rust in my exhaust."
"Awww..."
"Well how about a nice mouthfuck instead? You like that, don't you?"
"Good night, honey. I'll see you tomorrow."
"..."

"You know what to do. Lose your pants and bend over the table while I do some... doctorstuff there..."
"I'm sorry, Doctor Dawson, but my mother really wants me to get checked this time. I'm not here for...this again."
"You're kidding right? I'm already as horny for your little teen-ass as a prepubescent nerd for a skank in a homemade porn movie."
"...uhh also, I've got a rusty exhaust pipe back there."
"Here's your doctor's note. Now get outta here before I have second thoughts!"

rusty exhaust pipe by BulligerVerstand January 2, 2009