DIDDUMS Meaning of DIDDUMS in English [ 'dɪdəmz ]■ exclamation Brit. informal used to express commiseration to a child.OriginC19: from did 'em , i.e. 'did they?' (tease you, do that to you, etc.). Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004