hair that is very messy and looks like a rats nest. very gross.
that bum over there has a rats nest
by lkdjfkff August 06, 2006

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Top Definition
A situation or condition that is characterized by messiness, disorder, disarray, and/or confusion. Commonly used in the technology sector to refer to a software design or implementation that is hopelessly convoluted and difficult to understand - analogous to how a rat might construct its nest (haphazardly and hastily thrown together from whatever materials happened to be readily available at the time).
"I tried to figure out which wire was causing the problem, but there's a veritable rat's nest of wires, chords and cables down there."
by CatpainJack October 28, 2009

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Usually referring to a persons hair that isn't groomed nor taken care of.
"That girl's hair is a rat's nest!"
by JeVo July 07, 2006

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The bundle of wires underneath your computer desk or game console that represents months of negligence. Rats may or may not live inside. Don't even think about attempting to untangle one.
My mouse is tangled in a Rats Nest under my computer desk..how am I supposed to get it out?
by bxrad78 May 02, 2010

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An ugly mullet according to schizophrenic singer Wesley Willis
Get the rats nest off of your head, get that crazy ass mullet off your skull
by Flush-Out October 24, 2009

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A multiplayer map in the video game "Halo 3".
"Dude, I just pwnd that n00b on Rats Nest."
by Andrew Hoogerhyde December 31, 2007

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A goofy girls hair, a doid, or you at any moment in time.
You look like a RATSNEST!

You have a RATSNEST on your head.

RATSNEST.

Also see Bunty Goat
by Mark Stoner May 07, 2006

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