Gibberish, also known as jibber-jabber or gobbledygook, is speech that is (or appears to be) nonsense: ranging across speech sounds that are not actual words,[1] pseudowords, language games and specialized jargon that seems nonsensical to outsiders.[2]
"Gibberish" is also used as an imprecation to denigrate or tar ideas or opinions the user disagrees with or finds irksome, a rough equivalent of "nonsense", "folderol", "balderdash", or "claptrap". The implication is that the criticized expression or proposition lacks substance or congruence, as opposed to being a differing view.
The related word jibber-jabber refers to rapid talk that is difficult to understand.[3]