yackety-yak

or yack·e·ty-yack, yak·e·ty-yak, yak·i·ty-yak

[yak-i-tee-yak]Slang.

Origin of yackety-yak

First recorded in 1945–50; apparently imitative
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British Dictionary definitions for yackety-yak

yackety-yak

noun
  1. slang noisy, continuous, and trivial talk or conversationSometimes shortened to: yak

Word Origin for yackety-yak

of imitative origin
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