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
yadda yadda yadda
yada yada yada
- US slang tedious or long-winded talk
C20: of uncertain origin; possibly imitative of the sound of someone talking at length in a dull manner