- Slang. yak2.
or yack·e·ty-yack, yak·e·ty-yak, yak·i·ty-yak
Origin of yackety-yak
First recorded in 1945–50; apparently imitative
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- slang noisy, continuous, and trivial talk or conversationSometimes shortened to: yak
of imitative origin