Top definition
A meaningless expression used by furrys who can't or won't decide on a word to express the emotional state.

A furry "meh" basicly.
Fox: So how was your day?
Skunk: Marf
by Mr Yin January 05, 2009
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2
An acronym, short for "Modifications and Additions to Reactor Facilities." It is the name of a prototype reactor plant run by the U.S. Navy and the Department of Energy, located in upstate New York. It is a disastrous cluster-fuck of a Destroyer's engine room (surface ship's steam plant) and a S5W/S7G primary plant (fast-attack submarine's reactor plant), which results in nothing making any sense at all, and everything breaking constantly. According to a rumor I just heard, a large primary-to-secondary leak recently occurred and the plant is going to be shut down forever.

Also means, "Make another round, fucker!" and is said to someone who's sitting around, on watch, not using their time the way they're supposed to (bullshitting, not paying attention to equipment/machinery).
Person A: What plant are you in? S8G?
Person B: MARF :(
Person A: *shivers* I'm sorry man.
by Sarpedon June 19, 2006
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The vengeful act of crapping on a lover's chest while they sleep.

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3
The sound sheep make when they know we arent looking.
Also a nonsensical word that has no real meaning.
"Marf Marf"
"What was that???"
by Decontrol December 04, 2006
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4
The famous Arseish word 'marf' is commonly used by BadAsses of the United Badgers Association. Meaning "sex" or "fuck", it can be used in a variety of sentences. Other words find it's root in 'marf', such as 'marfut', marfer, 'ubermarfer' and 'merf'. Please use accordingly.
Oi Badgerstaff! Fancy a marf?
by Alex K. August 19, 2003
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5
When you're stroking it and your mom walks in
1. General Spacebat: Marf
1. General Flamereaperz: Marf!
1. General Emtee: Marf :(
1. General Octah: you all got caught marfing at the same tiem?
by Aman'thul June 28, 2009
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6
the name for a person who has the connective tissue dissorder marfan syndrome.
I miss my marfs from the conference
by marfgirl December 05, 2009
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7
An expression of depression, boredom, or general dissatisfaction with your life or current situation
"Hey man, what's up?"
"marf...."
"Oh? What's wrong?"
"Feeling crappy, don't know why"
by kimberkid October 29, 2006
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Dirty Sanchez Plush

It does not matter how you do it. It's a Fecal Mustache.

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