pack rat

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A person who hoards objects of little worth—e.g., string, old newspapers, etc.—or sentimental value. The pack rat mentality is typical of obsessive-compulsive disorder
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.

pack rat

Psychiatry A person who hoards objects of little worth–eg, string, old newspapers, etc–and lacking sentimental value; the PR mentality is typical of OCD. Cf Obsessive-compulsive disorder.
McGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
For a person, life as a pack rat is one of obsessively collecting, say, newspapers, computer parts, food containers, or maybe all of these.
The influence of two burrowing rodents, Dipodomys spectabilis spectabilis (kangaroo rat) and Neotoma albigula albigula (pack rat) on desert soils in Arizona.
That's for you to decide, but we here at AFS are paid to be information junkies and paper pack rats. Our only product is information.
We've become a nation of pack rats, filling our increasingly large homes with more paper, more purchases and things we just can't bear to get rid of.
Basements of the pack rats in your family are other possible sources of garden art.