Unintelligible or meaningless talk or writing; nonsense, gibberish. (Often a term of contempt for something the speaker does not understand.)

Unintelligible speech belonging to no known language, and supposed to be of arbitrary invention; inarticulate chatter, jargon. Often applied…

figurative. Inflated, turgid, or inappropriately lofty language; speech or writing composed of high-sounding words and phrases; bombast, rant; in…

A confused repetition or babble of talking; gibberish.

A rambling, disjointed discourse or speech; a convoluted, incoherent ramble; a rigmarole. Cf. rabble, v.1 Obsolete (regional in later use).

The action of gabbling (see gabble, v.). Also (frequently in plural): gabbled speech, discourse, sounds, etc.

Used as a disparaging or rousing chant or chorus. Obsolete.

Confused speech or language; meaningless chatter, rigmarole; babble, gabble; an instance of this.

Rapid, unintelligible speech; an instance of this; a rapid, unintelligible utterance. Also: meaningless or inconsequential talk; prattle. Cf. earlier…

Language that a person cannot understand; = double Dutch at Dutch, n.1 2b. Chiefly in to be (all) High Dutch to a person. Now rare.

Unintelligible speech or language, gibberish. Also heathen Greek (rarely Hebrew-Greek). (Cf. Hebrew, n. 2b.) St. Giles's Greek: slang.

Language so altered in sound or sense as to become generally unintelligible; jargon, ‘double-Dutch.’

Confused language, meaningless talk, nonsense.

Nonsense; rambling or meaningless language.

A succession or alternation of clinking sounds; figurative a senseless jingle of words.

colloquial. Unintelligible speech: cf. Greek, n. 8.

An instance of straying from the subject one is supposed to be talking about; rambling or evasive talk.

The act of jabbering; rapid and indistinct or unintelligible talk; gabble, chatter; gibberish.

colloquial. Obscure or meaningless language or ritual; jargon intended to impress or mystify; nonsense.

The action of gibber, v.1

Without article: language or discourse characterized by elaboration or (excessive) length; (in later use also) rambling or incoherent speech or…

Rapid and inarticulate utterance.

diffuse or protracted discourse; the use of this.

Noisy confusion of speech; incoherence of language or ideas; (also) diversity of languages; a state of mutual unintelligibility.

= baragouin, n.

Obscure, nonsensical, or mystificatory language; mumbo-jumbo, nonsense, gibberish.

double Dutch: a language that one does not understand, gibberish.

In allusive and extended uses, esp. ‘incoherent or nonsensical expression’.

invented language, meaningless language, nonsensical behaviour; also as adj., nonsensical, meaningless, topsy-turvy.

Probably: = mumbo-jumbo, n. 2.

= mumbo-jumbo, n. 2.

Deliberately unintelligible speech; speech that is a mixture of real and invented words; gibberish.

humorous. Silly terminology; (more generally) nonsense, rubbish. rare.