A quality of a person’s appearance relating to their aperance to Sadie Kingstead, hailing from Kent. If one has a particularly uncanny resemblance to Mrs Kingstead from kent, they are said to have a “Sadie-face”
Many of her own family including her brother and sister are known to posses this trait.
Woah you look just like this dog woman I know I completely thought you were her. You’ve got a real Sadie-face going on there pal.