SIDLE Meaning of SIDLE in English v. & n.v.intr. (usu. foll. by along, up) walk in a timid, furtive, stealthy, or cringing manner. n. the act or an instance of sidling. [ back-form. f. sideling, SIDELONG ] Concise Oxford English dictionary. Краткий оксфордский словарь английского языка. 2012