a rat's nest

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a rat's nest

1. Something that is very disorganized, cluttered, or tangled. This closet full has turned into a real rat's nest of all my holiday decorations. You're apt to find clay Easter bunnies wrapped in tinsel for the Christmas tree! Look at that rat's nest of cords plugged into the socket—it's a miracle you didn't blow a fuse sooner.
2. A concept or situation that is very confusing and difficult to understand. The tax laws in this country are a rat's nest that nobody fully understands.
See also: nest
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.