From Longman Dictionary of Contemporary Englishgibberishgib‧ber‧ish /ˈdʒɪbərɪʃ/ noun [uncountable] UNTRUEsomething you write or say that has no meaning, or is very difficult to understand SYN nonsense You’re talking gibberish!
Examples from the Corpus
gibberish• This manual is written in computer gibberish.• The two men stare at her, uncomprehending, rendered docile by her gibberish.• It was obviously a subject she barely grasped, because her report was, to put it kindly, gibberish.• Or would it sound like gibberish?• It is all so much gibberish.• They used so many complicated words, it was as if they were communicating in their own private gibberish.• Much of the talk about integrating international issues into the curriculum is public relations gibberish.• While we walked there, the kid just followed, talking gibberish.talking gibberish• While we walked there, the kid just followed, talking gibberish.• Up and down she goes, talking gibberish.• At times I went almost mad, talking gibberish, pulling faces, and singing in mock Latin.Origin gibberish (1500-1600) Probably from gibber 