look up any word, like swoll:
The sound of brown. It is a low pitch sound that makes the listeners asshole go "BLAH!!," leaving the pants of the victim heavy and very very brown.
When I was at that rap concert last night they hit the brown noise and all the niggas in the house shit demselves.
by Fat Man Jumpin January 11, 2006
A sound who'se volume/pitch makes people lose control of their bowels

in other words shit themselves
YUCK it stinks in here ever since the Brown Noise happened!
by Solid Dragon August 30, 2003
A note 92 cents belob the lowest Eb octave that makes people lose bowel controls. From south park and awesome ass show.
Hey guys i found it, i foundt he brown noise
by KJ October 24, 2003