Top Definition
Compound word adding Pump and Grunt. The act of pumping weights at an extraordinary volume. Loud enough so the entire gym will have no choice but to to take a glance out how "Jacked" and "Tan" you are.
Ben: You ready to go work out Boss?

Ryan: No im not....BUT I AM READY FOR A FUCKIN PUMPGRUNT

Ben: My apoligies....LETS DO IT
by RUSSITHABOSS November 17, 2011
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