fart muffler 

A term used to describe an annoyingly loud and unusually large cannister muffler installed on an automobile. The described is usually seen at the rear of the vehicle. Typically seen on Asian automobiles, although rare sightings have been seen also to be installed on a domestic vehicle. The owner is a self-proclaimed "tool" who just needs to "cut that shit".

Hey, did you just see that fart muffler on that car?
Dude, why did you get that "gay" fart muffler?

fart muffler by BBRX8 October 31, 2009

fart muffler 

The act of holding toilette paper over the rectum while passing gas in a public restroom stall in order to conceal the noise of flatulating.

Because the ladies room was full, Erin used a fart muffler to conceal her true intentions in the stall.

fart muffler by SKN December 9, 2006

Rainbow Muffler 

Gay Anal Sex; Homosexual Buttfuck; When two men do each other!

Robert: Hey Baby, I want to give you a Rainbow Muffler!
Enzo: NO WAY FAG!
Peter: LOL
Roosevelt: I'll take it baby

Rainbow Muffler by RMenke April 25, 2011

Putter Muffler 

A fart that rolls from a womans anus through her lips and out the front.

Amanda ripped a good putter muffler.

Putter Muffler by theroomies February 23, 2008

Steaming Muffler 

The art of spreading the vagina and farting in it(preferably after the consumption of beans). Have her hold the fart in while she gives you sloppy head and when your about to ejaculate(cum), put it in her cavity(vaginal) and an ultimate queef will always be the result.

With all the beans I ate today, tonight will be the perfect night to try the steaming muffler with Natalie.

Steaming Muffler by LongDoe September 30, 2011

Cum muffler 

The wad of toilet you hold against your asshole to muffle the sound of shame as you try to expel the cum from your anus after butt sex so you're roommates can't hear.

I used a cum muffler and my mom didn't suspect a thing

Cum muffler by B&A&F March 17, 2017

custard muffler 

Another name for a condom.

His blue veigned custard chucker was throbbing, but alas, it would be denied without him wearing the trusted custard muffler.

custard muffler by Bruce Juice June 3, 2017