Weak Pumps Share definition Flag When having sex, only lasting for a few pathetic strokes before busting. Girl 1: I heard you slept with Blair B? Girl 2: Not for long, he's got weak pumps! Weak Pumps by RonnieDonnieJohnny September 10, 2011 0 0 Get merch Get the Weak Pumps mug. Buy Now — $32.95 See more merch