(intransitive) To talk rapidly, indistinctly, or unintelligibly; to utter gibberish or nonsense.
1829, James Hogg, The Shepherd’s Calendar, New York: A.T. Goodrich, Volume I, Chapter 9, “Mary Burnet,” p. 184,
Allanson made some sound in his throat, as if attempting to speak, but his tongue refused its office, and he only jabbered.
(transitive) To utter rapidly or indistinctly; to gabble.
noun
Rapid or incoherent talk, with indistinct utterance; gibberish.
1735, Jonathan Swift, Gulliver’s Travels, in The Works of Jonathan Swift, edited by George Faulkner, Dublin, 1735, Volume 3, A Letter from Capt. Gulliver to his Cousin Sympson, pp. v-vi,
And, is there less Probability in my Account of the Houyhnhnms or Yahoos, when it is manifest as to the latter, there are so many Thousands even in this City, who only differ from their Brother Brutes in Houyhnhnmland, because they use a Sort of a Jabber, and do not go naked.
noun
One who or that which jabs.
(informal) One who administers a hypodermic injection.