fart muffler 

Underwear, undergarments.

Do you smell that? I betcha his fart muffler is stained.

fart muffler by victorzulu November 29, 2010

butt muffler 

1. Adj. Butt Muffler- Usually used in terms of insult or just to say something. When used as a direct adjective, mainly an insult, it utterly confuses the target, giving you time for your next comeback.
2. Noun Butt Muffler- When used as a noun, it is usually referred to something that is shove up or into the rectum to "muff" the noise of a fart or black any and all outgoing "materials".

1. You god damn Butt Muffler, go fuck yourself!

2. Dude, your ass is leaking! I'll go get you a Butt Muffler.

butt muffler by Bmart June 8, 2007

muff muffler 

an asshole that for some reason finds it necessary to prevent you from getting any cheeks.

yo dog i was tryin to have some butt sex wit dat mexican bitch yesterday at the party, but some muff muffler came out of nowhere and fucked that up. SO THEN I KILLED HIM

muff muffler by tyriqfromthestreet November 12, 2009

Chino Muffler 

It is a sex act where one person put chocolate milk in there mouth and then through a straw blows the chocolate milk into the other persons butt then blows bubbles releases the straw and the chocolate milk goes all over their face!

It was so hot last night my boy friend and I did the chino muffler...still trying to get the chocolate milk out of my hair!

Chino Muffler by Angry! July 26, 2010

The Muffler

When you place an open can (coke, Dr. Pepper, monster, beer, etc.) in someone’s asshole, stab a hole in the bottom once placed, and shotgun the said substance.

Bro my asshole is still bleeding after Kyle did The Muffler with his monster

The Muffler by Ni99er_beater69 March 16, 2021

rusty muffler 

Used as a code word over the phone when talking about marijuana cigarettes, joints, reefers, doobies, chongers, etc., etc....

Hey man do you got any rusty mufflers?

rusty muffler by stoner July 17, 2002

tit muffler 

A man or woman that often when having sexual intercourse loves to motorboat constantly without stopping for about a minute then proceeds to make sweet sweet love!

I hope you like me putting my face in your boobs cuz im a total tit muffler

tit muffler by Assapopalis May 19, 2008