Gibberish Gib"ber*ish, n. [From Gibber, v. i.] Rapid and inarticulate talk; unintelligible language; unmeaning words; jargon. He, like a gypsy, oftentimes would go; All kinds of gibberish he had learnt to known. --Drayton. Such gibberish as children may be heard amusing themselves with. --Hawthorne.
If you describe someone's words or ideas as gibberish, you mean that they do not make any sense. When he was talking to a girl he could hardly speak, and when he did speak he talked gibberish.= nonsense
The cant language of thieves and gypsies, called Pedlars' French, and St. Giles's Greek: see ST. GILES'S GREEK. Also the mystic language of Geber, used by chymists. Gibberish likewise means a sort of disguised language, formed by inserting any consonant between each syllable of an English word; in which case it is called the gibberish of the letter inserted: if F, it is the F gibberish; if G, the G gibberish; as in the sentence How do you do? Howg dog youg dog.