To jabber (something) or engage in jabbering. (verb-transitive)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "yabber" in a sentence
"A word attributed to Wuywurung is the Australian slang term yabber 'talk,' which is probably from Wuywurung yaba 'speak'; another possibility is mia-mia, a synonym for gunyah 'a temporary shelter of the Aborigines, usu. a simple frame of branches covered with bark, leaves, or grass,' about which you can read in exhaustive detail here:In the Australian National Dictionary 1988 we are told that it comes from Wathawurung and Wuywurung."
"Law, "And your Petitioners will ever Pray," and all that kind of yabber-yabber -- they give its representative the lazy side of the fire and a fig of the best tobacco when he bails up a camp as the Cadi did ours."
"Drysdale took up the strain: "Yes, Cadi, you've got the true missionary gospel, the kind of yabber they fire at each other over tea and buns at"