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definitions

yada-yada-yada

or yad·da-yad·da-yad·da

[yah-duh-yah-duh-yah-duh]
adverb, noun Slang.
  1. blah-blah-blah.
Also ya·da-ya·da, yad·da-yad·da.

Origin of yada-yada-yada

First recorded in 1990–95
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
British Dictionary definitions for yadda yadda yadda

yadda yadda yadda

yada yada yada

noun
  1. US slang tedious or long-winded talk

Word Origin for yadda yadda yadda

C20: of uncertain origin; possibly imitative of the sound of someone talking at length in a dull manner
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012