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Defined as anyone who goes to the gym and does many reps and sets of a machine improperly. Often used to appear as if they have more strength than what they really do. Usually associated with buff guys or gym rats.
Bro, look at that dude squatting 415 over there, are his knees even bending?...what a half pump chump.
by Brad_yungtaco June 03, 2016
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Jul 1 Word of the Day
sending two texts in a row without a reply inbetween.
Rachel: whats up?
Tessa: not to much! hbu?
Tessa: dude, i'm so bored.
Rachel: stop double texting me.
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