RIDGY-DIDGE Meaning of RIDGY-DIDGE in English [ 'rɪdʒidɪdʒ ]■ adjective Austral. informal genuine, original, or good.Origin1950s: from ridge , an old slang term meaning 'gold, gold coin'. Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004