Any human-like creature that is one or more of the following: greedy, horny, smelly, has tendencies to indulge in sexual acts with little girls, or will walk into any house unannounced and eat any and/or all food in the area.
by shart666 January 19, 2009

Used as a replacement for any verb, marf can be useful in many situations.
Forms- Marf, Marfing, Marfed
Forms- Marf, Marfing, Marfed
Me and Dave were marfing last night, and he marfed my fucking keyboard! I am going to marf him into 1985 for that shiz!
by wazzledoozle September 17, 2008

To barf in your mouth. When some vomit comes up and stops at the back of the throat/mouth and is swallowed back down.
"Dude, I just marfed and can taste that Chinese food all over again."
"Damn, I just marfed a little bit. Can I get some gum?"
"Damn, I just marfed a little bit. Can I get some gum?"
by GBCA February 20, 2008

defined by Adrian Glenn of Birmingham, UK in 2003, the word marf is an alternative for the word ''retard''.
by Adrian Glenn January 02, 2005

by 2014_chiguy January 04, 2008

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 24, 2011

a word that you use to express agitation, excitment or any other emotion rather then saying a whole sentence
by hbw October 20, 2008
