Gibberish

Gibberish, also called jibber-jabber or gobbledygook, is speech that is (or appears to be) nonsense. It may include speech sounds that are not actual words, or language games and specialized jargon that seems nonsensical to outsiders. 
"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", or "claptrap". The implication is that the criticized expression or proposition lacks substance or congruence, as opposed to simply being a differing view.
The related word "jibber-jabber" refers to rapid talk that is difficult to understand.
Etymology.
The etymology of "gibberish" is uncertain. The term was first seen in English in the early 16th century. It is generally thought to be an onomatopoeia imitative of speech, similar to the words "jabber" (to talk rapidly) and "gibber" (to speak inarticulately).
It may originate from the word "jib", which is the Angloromani variant of the Romani language word meaning "language" or "tongue". To non-speakers, the Anglo-Romany dialect could sound like English mixed with nonsense words, and if those seemingly-nonsensical words are referred to as "jib" then the term "gibberish" (pronounced "jibberish") could be derived as a descriptor for nonsensical speech. Another theory is that "gibberish" came from the name of a famous 8th century Muslim alchemist, Jābir ibn Hayyān, whose name was Latinized as "Geber". Thus, "gibberish" was a reference to the incomprehensible technical jargon and allegorical coded language used by Jabir and other alchemists.
A discredited alternative theory asserts that it is derived from the Irish word "gob" or "gab" ("mouth") or from the Irish phrase "Geab ar ais" ("back talk, backward chat"). The latter Irish etymology was suggested by Daniel Cassidy, whose work has been criticised by linguists and scholars. The terms "geab" and "geabaire" are certainly Irish words, but the phrase "geab ar ais" does not exist, and the word "gibberish" exists as a loan-word in Irish as "gibiris".
The term "gobbledygook" was coined by Maury Maverick, a former congressman from Texas and former mayor of San Antonio. When Maverick was chairman of the Smaller War Plants Corporation during World War II, he sent a memorandum that said: "Be short and use plain English. ... Stay off gobbledygook language." Maverick defined "gobbledygook" as "talk or writing which is long, pompous, vague, involved, usually with Latinized words." The allusion was to a turkey, "always gobbledygobbling and strutting with ridiculous pomposity."
Use.
Gobbledygook.
The term "gobbledygook" has a long history of usage in politics. Nixon's Oval Office tape from June 14, 1971, showed H. R. Haldeman describing a situation to Nixon as "... a bunch of gobbledygook. But out of the gobbledygook comes a very clear thing: You can't trust the government; you can't believe what they say." President Ronald Reagan explained tax law revisions in an address to the nation with the word, May 28, 1985, saying that "most didn’t improve the system; they made it more like Washington itself: Complicated, unfair, cluttered with gobbledygook and loopholes designed for those with the power and influence to hire high-priced legal and tax advisers." In 2017, United States Supreme Court justice John Roberts dismissed quantitative sociological reasoning as "gobbledygook" in arguing against any numerical test for gerrymandering.
Michael Shanks, former chairman to the National Consumer Council of Great Britain, characterizes professional gobbledygook as sloppy jargon intended to confuse nonspecialists: "'Gobbledygook' may indicate a failure to think clearly, a contempt for one's clients, or more probably a mixture of both. A system that can't or won't communicate is not a safe basis for a democracy."
In acting.
Using gibberish whilst acting can be used as an exercise in performance art education. Another usage of gibberish is as part of Osho's "Gibberish meditation" which has been derived from an old Sufi practice.
Other terms and usage.
The terms "officialese" or "bureaucratese" refer to language used by officials or authorities. "Legalese" is a closely related concept, referring to language used by lawyers, legislators, and others involved with the law. The language used in these fields may contain complex sentences and specialized jargon or buzzwords, making it difficult for those outside the field to understand. Speakers or writers of officialese or legalese may recognize that it is confusing or even meaningless to outsiders, but view its use as appropriate within their organization or group.
Bafflegab is a synonym, a slang term referring to confusing or a generally unintelligible use of jargon.
External links.
gobbledegook = language = referenced in the movie, Carry On Regardless...surprisingly a translator does translate the language as it is spoken by the owner of the building to Sid James near to the end of the movie...[1961 movie][Paul Thomson - saw the movie at the w/e - 23.11.2020]