As nouns the difference between pumper and mumper
is that pumper is one who pumps something while mumper is a beggar.
pumper
English
Noun
(
en noun)
one who pumps something
(bodybuilding, slang) Steroids or other drugs taken to improve blood flow and increase muscular size.
See also
*gym candy
*roids
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==Norwegian Bokmål==
Noun
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