Definition of gibberish noun from the Oxford Advanced American Dictionary

     

    gibberish

     noun
    noun
    NAmE//ˈdʒɪbərɪʃ//
     
    [uncountable](informal)
     
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  1. 1words that have no meaning or are impossible to understand synonym nonsense
  2. 2 You were talking gibberish in your sleep. After a while I stopped listening to his stream of gibberish.
See the Oxford Advanced Learner's Dictionary entry: gibberish