Jibber jabber
To talk rapidly and continuously in a foolish or excited way.
I really don’t understand what he is jibber-jabbering about.
The train was full of people jibber-jabbering into their mobile phones.
A foolish or valueless talk
That article is just jibber-jabber. There is no evidence for what they stated.
Don’t waste your time listening to her jibber jabber.
Used to refer to speech or writing that is nonsensical or overly complicated, consequently incomprehensible.
1. To speak stupid things; to talk nonsense.
2. To overstate one's accomplishments or understanding of a topic; to boast.
The verb "Jibber jabber" should be conjugated according to its tense.
Back in Europe, any foreigner with dark hair and olive skin was assumed to be from Egypt and were called "gypts." Later the word became "gypsies." Because their accents were hard to understand, the words they spoke were termed "gibberish." This has mutated through time to also include "jibber" and "jabber."