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Glossary / Training
Pump
Temporary swelling and fullness in a muscle during or after training.
Short Definition
Temporary swelling and fullness in a muscle during or after training.
Plain-English Explanation
Pump means temporary swelling and fullness in a muscle during or after training. In practice, it helps name informal gym talk without turning the phrase into science.
No Lies Lifting uses it as a plain-language reference point, not a magic rule by itself. Common gym slang.