MDFFL 

An acronym for : My Dearest Friend For Life. The highest form of friendship and a loving bond between two people. They would take bullets for one another. They are willing to be weird and crazy around each other... no questions asked. Unbreakable bond... they always end up back together. Fate reunites them no matter where they are. They are friends that are comfortable being with each other and doesn’t feel the urge to have small talk.. their presence is enough. If you find your MDFFL keep and hold them close.

MDFFL is having a party tomorrow.

I got MDFFL an amazing birthday present.

I bought a train ticket to surprise MDFFL at her new school.

MDFFL by Chicken Nuggerts July 22, 2018

Mufflered Fellatio 

Breaking wind while performing a blow job

Dammit, I was sucking on a huge new cock last night. Everything was perfect, except I was a little bit drunk, and I broke wind right in the middle of it all. Thank god he was drunk too, and we made a joke and called it mufflered fellatio. We had great sex, but I was pretty embarrassed.

Mufflered Fellatio by susan0506 October 8, 2011

Muffling 

A term popularised by comedian Russell Howard, referring to the act by which a woman rubs her vagina flaps over the face of another person.

The male equivalent of the act is a teabag.

Queen Elizabeth left Prince Phillip gasping for air after making him endure a long seasion of muffling.

Muffling by MuffleMaster July 30, 2017

Dunder Mifflin 

People person's paper people

Dunder Mifflin is a better paper company than Staples.

Dunder Mifflin by Flatblok71 May 27, 2020

muffler monkey 

Someone who drives a compact car (most likely a Honda Civic or Acura Integra) that sports a variety of tacky looking aftermarket parts which are meant to add visual flare and improve the car's performance. The most notable feature is the car's huge muffler that looks like a coffee can, and makes it sound like a weedwacker. Other common bolt-ons include huge spoilers, body kits, hood scoops, gauges, window stickers and other decals, tinted windows, lowered suspension, bright colored paint job, etc. More often than not, these cars aren't even that fast and are usually driven by high-school kids.

The sound coming from that muffler monkey's car is really irritating.

muffler monkey by ryan_10304 November 15, 2007

michael scott's dunder mifflin scranton meredith palmer memorial celebrity rabies awareness pro-am fun run race for the cure

The Office (U.S.) S4:E1 "Fun Run"
what Michael Scott created for his coworker, Meredith Palmer, to find a cure for rabies, even though it is already cured and the Fun Run didn't raise any money (besides the money Jan donated--with Michael's money--to a nurse stripper)

Michael Scott drank less water and more fettuccine alfredo during the Michael Scott's Dunder Mifflin Scranton Meredith Palmer Memorial Celebrity Rabies Awareness Pro-Am Fun Run Race For The Cure.

michael scott's dunder mifflin scranton meredith palmer memorial celebrity rabies awareness pro-am fun run race for the cure by anna is a bananya May 5, 2019

mifflin county 

A place in central PA that get categorized into a town since it is so small. Once said to be the herion capital of the NE, it now boasts the most teen pregnancies in Pennsylvania. Also known as Miff. Co. The amish population most likely out weights the rest of the population, and the chicken and cow population by far outweights the human.

Steph: Mifflin county is a shit hole. I'm so glad I got out.
Wilm: I'm so sad I still live here.

mifflin county by Stephanie Bryn November 24, 2006