Top Definition
Shelving system used for placement of rodent cages; usually used by scientific researchers, and often found in vivariums (areas in research facilities where live animals are kept). Anyone who uses a large amount of rats will most likely have at least one of these (eg; snake breeders). May also be called rodent rack, mouse rack, etc...
Get a rat rack, hang on it, because you may be used for medical, psychological or social studies—unbeknownst to you, and depending on what medication you're on.
by Potty Mouth June 07, 2005

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