Top definition
Exaggerated chaos that ensues following a relatively small act or event. Refers to Episode 317 of South Park in which Cartman's mission to find the brown noise creates a domino effect that leads to devestation and destruction around the world
(Random person's thoughts as they happen) "oh shit I just tripped over, whoops and I knocked over that glass of water at the same time, oh my god and it's gone all over that lamp and OVER THE WIRES &!%£$%^AAAAARRGGHHH BROWN NOISE SITUATION!!"
by K Ellis January 09, 2009