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1.
(verb) To shit accidentally while attempting to fart.

(noun) Fecal matter accidentally expelled while farting.
I had to rush home from the mall because my attempt at crop dusting turned into a brown fart.
by joey's mommy September 25, 2007
 
2.
A fart that has come from a person with the surname of drazen (most likely a pant stainer)
"ewwww drazen you brown fart that stinks"
by 96edwy November 22, 2007