http://www.m-w.com/dictionary/yada+yada
yada yada
One entry found for yada yada.
Main Entry: ya·da ya·da
Variant(s): or yad·da yad·da /'yä-d&-'yä-d& /; or yada yada yada or yadda yadda yadda /-'yä-d&/
Function: noun
Etymology: alteration of earlier yatata idle chatter, probably ultimately from British dialect and argot yatter-yatter to chatter, of imitative origin
: boring or empty talk <listening to a lot of yada yada about the economy> -- often used interjectionally especially in recounting words regarded as too dull or predictable to be worth repeating