vampire time suck Share definition Flag A person or thing that, like a vampire, sucks an inordinate amount of time from your schedule. "Remember that software bug I found? Well, I was working on that vampire time suck of a project for hours." vampire time suck by Metrosexuwell April 29, 2009 0 0 Get merch Get the vampire time suck mug. Buy Now — $32.95 See more merch