2 pump chump Share definition Flag noun. 1) a male who prematurely ejaculates after 2 pumps to his penis That 2 pump chump isn't very good in bed, he always leaves me unsatisfied. 2 pump chump by JosephD August 30, 2006 0 0 Get merch Get the 2 pump chump mug. Buy Now — $32.95 See more merch