scadalackin Share definition Flag The act of laying in bed diagonally (on purpose) so that your parter cannot lay in the bed also, also known as being a jerk. "Honey move ur big ass over! Theres NO scadalackin tonight!" scadalackin by nett nett April 4, 2010 0 0 Get merch Get the scadalackin mug. Buy Now — $32.95 See more merch