GIBBERISH Meaning of GIBBERISH in English [ 'dʒɪb(ə)rɪʃ , 'gɪb- ]■ noun unintelligible or meaningless speech or writing; nonsense.OriginC16: perh. from gibber 1 (but recorded earlier) + -ish 1 . Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004