blue vein throbber Share definition Flag when the dick is at its fullest erection,when the vein in the penis is sticking out due to extreme horneyness. come here baby, and relieve this big "blue vein throbber". blue vein throbber by randall March 21, 2003 0 0 Get merch Get the blue vein throbber mug. Buy Now — $32.95 See more merch