Muddy Unicorn

Fixing a strap-on dildo to your forehead, inserting it into a vagina and proceeding to tongue said females butt.

"I couldn't get it up, so I just put a strap-on on my head and gave her the muddy unicorn."

by Eddie-Machete September 4, 2012

Muddafluffin

A slang term for the expletive motherfucking.

"Man that movie was muddafluffin AWESOME!"

by Chritophuh October 9, 2008

Muddy Napkin

An act of revenge: When seeing a person who has pissed you off or you otherwise don't like in a restaurant, you first must pose as a staff member of the establishment. Then take their napkin holder off of the table pretending to refill it. Then take the first napkin and wipe your ass with it. bring the holder back to the table and wait for your victim to hopefully wipe their mouth with it unsuspectingly.

As to muddy napkin your boss while on a date.

by The Big BEENJAMMIN July 28, 2011

Muddy Hallway

The muddy hallway is a term used to describe the sensation felt when engaging an extremely slutty girl in anal sex.

Multiple poundings from behind have left her back door gaping open. The tightness one would hope to feel is no longer available, resulting in a sensation similar to trying to engage a hallway in sexual intercourse.

Dude, I totally experienced a muddy hallway when I nailed Kim in her backdoor; she has one loose caboose. Something tells me I wasn't the first (or 50th) guy to do that.

Thank god I wore a rain coat condom.

by 686-1983 March 9, 2012

Muddy Doody Society

A membership organization in which to belong you must have taken a dump thought to be a clean swiper (little toilet paper used) and found upon said swipe a muddy mess with doody (feces) all over the paper even under your fingernail. Once you experience this you are officially, like or not, a member of the Muddy Doody Society (MDS)

Man #1: Hey man sorry I took so long, thought I was going to have an easy time in there but fell pray to the Muddy Doody Society.

Man #2: Shit man your first time becoming a member of the MDS?

Man#3: Hell no my wife checks my fingernails before we go to bed at night and she makes sure I have my membership card in my wallet.

by Looneylarry August 29, 2012

Muddy Bicycle Tire

When during Anal intercourse (the woman may need to have diarrhea) the male pulls out and smacks his dick on the females back near the tramp stamp area. This will cause a lot of the fecal matter to be flung off and leave a trail of shit up the spine.

you dude i gave that bitch the muddy bicycle tire last night and she spent an hour in the shower trying to get the shit off! hahaha she couldn't reach it!!

by drewbag January 4, 2013

Muddy hosepipe

A disastrous event that occurs 2.3446 nights after consuming large quantities of Indian food. (Note: this only occurs after contracting Pink Sock disease.)

"Man, last night I had a bad experience with my Muddy hosepipe."

by The Keg August 16, 2013