PumpNdump Share definition Flag The process of acquiring a girl's love, having your way with her in bed, and then dumping her immediately afterwards and never returning her calls. "I thought they were watching Titanic?" "Nah that was just an excuse so he could PumpNdump her" PumpNdump by Art_1 December 9, 2008 0 0 Get merch Get the PumpNdump mug. Buy Now — $32.95 See more merch