The Slank Share definition Flag A horrible, fatal sexually transmitted diesease that is believed to have orginated in saginaw michigan. it kills within 24 hours of contraction. Anyone who is a collegiate female athlete in the 989 area code most likely has the slank. The Slank by archcard April 28, 2010 0 0 Get merch Get the The Slank mug. Buy Now — $32.95 See more merch