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gym rat
[ jim rat ]
noun
, Slang.
- an exercise and fitness enthusiast who spends a lot of time at the gym, working out frequently or for long periods of time:
Whether you're a gym rat or a total newbie, these sets are worth exploring.
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Word History and Origins
Origin of gym rat1
First recorded in 1970–75
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Example Sentences
These days, beyond simply maintaining his sobriety, the actor has turned into something of a gym rat.
From The Daily Beast
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