Grumpy Muffler

The act of defecating into one's Air Duct or AC System, causing a foul shit-like smell within the entire facility.

My Boss fired me and I got back at his Bitch Ass by giving the office a "Grumpy Muffler", that'll teach them!!

by Ass-lickin-lova December 12, 2023

bone muffler

Vag, pussy, vagina (a penis warmer/holder)

That babe’s got a bone muffler that just won’t quit

by sleazmeister December 17, 2023

Bloody Muffler

When your fully erect hog relentlessly tries to penetrate a puckered butt hole resulting in a bloody fountain of hell

There is a trail of blood leading to AJs bed room and he is in there curled up sucking his thumb. Looks like Mike gave him a real good bloody muffler this afternoon

by Gossip Gary December 7, 2018

Bloody Muffler

Forcefully ducking down a puckered butthole resulting in a bloody mess

We found a trail of blood leading to AJs bedroom and he was curled up in a ball sucking his thumb. Looks like Mike really gave him a bloody muffler this afternoon

by Gossip Gary December 7, 2018

cooch muffler

A big-ass pornstache.

"I'll grow the best cooch muffler you've ever seen"

by Hey, demons. It's ya girl. October 18, 2018

Hot Muffler

When you take a shit that's either huge, or after eating spicy foods, causing your anus to bleed.

That spicy burrito gave me such a hot muffler.

by Justhefactsmam August 3, 2017

Mufflers

The people who try to talk to you while you have headphones in

Mufflers: *blah blah blah*
You: What did you say
Mufflers: I said could you help me clean

by myrrealname March 14, 2019