Simple Definition of pack rat

from our Learner's Dictionary

pack rat

noun

plural pack rats
US, informal : a person who collects or keeps things that are not needed
I'm a terrible pack rat. I never throw anything away.

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“Pack rat.” Merriam-Webster.com Simple Definition, Merriam-Webster, https://www.merriam-webster.com/simple/pack%20rat. Accessed 24 Jul. 2026.

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