A combination (or portmanteau) of the words "moist", "ass", and "barf" all in one. It pretty much means poop or diarrhea, but with a funnier sounding word.
Person 1) "I totally just marfed on your birthday cake!"
Person 2) "That's okay. Maybe we can eat your marf and vomit all over each other!"
Person 1) "Only if you fist me!"
Person 2) "Deal!"
Person 2) "That's okay. Maybe we can eat your marf and vomit all over each other!"
Person 1) "Only if you fist me!"
Person 2) "Deal!"
by Green Bean Boy December 2, 2010
by MREASTMASTER69 December 12, 2009
That motherfucker marfed your prospect.
by Dr. Jrock October 22, 2010
by DJ KRUNCH! October 11, 2007
That humurous fart when it starts out with a pop, immediatley followed by a long high pitched sound ending the fart. Sounds like, "Pow, weeeeeeee"
by Jimbo75 October 3, 2011
FUCK MARF FUCK MARF FUCK MARF
by FUCK PETE April 12, 2022