A lot vs. Alot: 9 Grammatical Pitfalls
an indication of meaningless or uninteresting talk or chatter; also [yada yada yada]
And here she goes again, yada yada yada.
meaningless or trivial talk; blah blah blah; also yada yada yada
1967; fr Yiddish and Hebrew yadaa 'to know'
with many spelling and repetitive variants