Hmm, well what is odd and rare to one person may be standard parlance to another! Having moved up to Scotland from England in the late 80s, i had to learn a whole new anatomy and physiology to be able to understand what my patients were complaining of: "sair heids, hirpling, oxters, rifting, hunkers, haunds, pinkies" and many more. They're not so rare here, but were rare to me then!