1. A fusion of the words meow and arf, usually uttered by the bored.

2. A word that can be used to change the subject in an awkward and/or annoying conversation.

3. Can be used when others are making random animal sounds. (when asked what it is use definition 1, paraphrase if you'd like)
1. This is sorta self-exclamatory.

2. Wierd Guy: Hey guess what.

You:What?

Wierd Guy: *random shit*

You: MARF.

Wierd Guy: What?

You: I said MARF.

Wierd Guy: Ok then.

You: Yup.

Wierd Guy: *Walks away*

You: *smile in triumph*

3. Person #1: Meow

Person #2: Arf

You: MARF

Both #1-2: What

You: *explain what MARF is*

Both #1-2: *bow down to your glory*
by Blah- muther fuckin- Blah November 23, 2009
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a sacred word used instead of the word f***/sex/bonk, ect. Generally used by ?Badgers and Bad Asses
1)Keanu Reeves is pretty MARFy, no?
2)You are a motherMARFer
3)I enjoy MARF
by Lizz August 19, 2003
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defined by Adrian Glenn of Birmingham, UK in 2003, the word marf is an alternative for the word ''retard''.
1) You're such a marf Facey!!!
2) Dude that is marfed up
3) You fat-headed marfenoid
by Adrian Glenn January 02, 2005
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A contraction of the words muff and barf. Muff meaning vagina and barf meaning....barf. Slang for the technical term vaginal vomit.
Will can you clean up the couch? Your girlfriend and all her STDs left some marf on it the last time you guys boned.
by Hayden Mckay March 08, 2011
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Someone who has Marfan Syndrome. Commonly used with in group of people.
I'm hanging with my Marfs.
by MarfMan August 09, 2012
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a word that you use to express agitation, excitment or any other emotion rather then saying a whole sentence
"BRITTANY DO THE DISHES!!" mad commandment
MARF! (agitation)
by hbw August 31, 2008
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